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Pengaruh Penambahan Crude Stearin Minyak Kelapa Sawit Terhadap Kestabilan Dark Chocolate Muchtar, Hendri; Diza, Yulia Helmi
Jurnal Litbang Industri Vol 1, No 1 (2011)
Publisher : Institution for Industrial Research and Standardization of Industry - Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24960/jli.v1i1.588.1-7

The research about effect of crude palm oil stearin addition to the stability of dark chocolate had been caried out with the purpose to determine the effect of crude stearin as a substitute of cocoa butter and as a stabilizer of dark chocolate during storage. A number of stearin used was varied from 0%, 5%, 10%, 15%, 20% and 34%, while other ingredients (cocoa powder, cocoa fat, sugar, lecithin and salt) were given in the same amount. The properties of chocolate product which had been analyzed were the melting point, fat content and free fatty acids (FFA) content, then it was conducted storage stability and the organoleptic test. The results showed that the higher concentration of stearin used, the stability of the chocolate tends to be better with a melting point of chocolate is also higher (ranging from 49oC to 55oC). During storage the FFA levels increased from 0,15% in the first week to 0,71% in the fifth week. This numbers are still within the limits required by Indonesia National Standard (SNI) 01-3748-1995 on cocoa butter. The fat content decreased from 40% to 35% during 7 weeks storage. From the results of organoleptic test, treatment of 10% crude strearin addition was preferred by panelist.ABSTRAKPenelitian pengaruh penambahan crude stearin minyak kelapa sawit terhadap kestabilan dark chocolate telah dilakukan dengan tujuan untuk mengetahui pengaruh crude stearin sebagai pengganti lemak cokelat sekaligus sebagai stabilisator dark chocolate selama penyimpanan. Jumlah crude stearin yang digunakan divariasikan mulai dari 0%, 5%, 10%, 20% dan 34%, sedangkan bahan-bahan lain (cokelat bubuk, lemak cokelat, gula, lesitin dan garam) diberikan dalam jumlah yang sama. Kepada produk cokelat yang dihasilkan dilakukan analisa titik leleh, kadar lemak dan asam lemak bebas (FFA), selanjutnya dilakukan uji ketahanan simpan serta uji organoleptik. Hasil penelitian menunjukkan bahwa semakin tinggi konsentrasi crude stearin yang digunakan, kestabilan cokelat cenderung lebih baik dengan titik leleh cokelat juga semakin tinggi (berkisar dari 49oC sampai 55oC). Selama penyimpanan, kadar FFA semakin meningkat dari 0,15% pada minggu pertama menjadi 0,71% pada minggu kelima. Angka ini masih berada dalam batas yang dipersyaratkan pada Standar Nasional Indonesia (SNI) 01-3748-1995 tentang lemak kakao. Kadar lemak cenderung mengalami penurunan dalam penyimpanan selama 7 minggu, yaitu dari 40% sampai 35%. Dari hasil uji organoleptik, perlakuan penambahan stearin 10% memberikan hasil yang cenderung lebih disukai oleh panelis.

Pengaruh Beberapa Jenis Talas (Xanthosoma sp) dan Bahan Fortifikasi Pangan dalam Pembuatan Mie Hermianti, Wilsa; Silfia, Silfia
Jurnal Litbang Industri Vol 1, No 1 (2011)
Publisher : Institution for Industrial Research and Standardization of Industry - Padang

Noodle is a food product processed from wheat flour is very popular among many people because it is easy and fast in the serving as well as glut so it is often used as a food substitute for rice. To anticipate and reduce dependence on wheat, the making of noodles can be replaced with crops such as taro tubers. Taro plant is one of the major crops among the various types of tubers in the tropics as a source of carbohydrate.There are 60 local varieties of taro reported in West Sumatra, but only three types of taro are easily found in the market. They are purple stems Colocasia esculenta, green stems Colocasia esculenta and kimpul taro (Xanthosoma sagittifolium). Research was carried out by combination of treatment type of taro and fortification materials (red sweet potatoes, carrots, and spinach) to enrich the nutrional and to vary the appearance of noodles. Organoleptic tests of the noodle produced including color, aroma, flavor, texture, and analysis of water content, ash content, protein, crude fiber, carbohydrates and fats as well as observations of the shelf life of the products based on water content and visual appearance for 3 months of storage. Research results indicate that the optimal results was the treatment of taro noodle from kimpul taro substitute with 50% flour and 7% additional material of spinach (T2P3). The taro noodles product had moisture content of 7.40%, 64.54% of carbohydrate, crude fiber of 2.71%, protein content of 11.81%, 11.19% of fat, calorific value of 405.5 calorie and organoleptic tests were preferred by panelists.ABSTRAKMie merupakan produk pangan hasil olahan tepung terigu yang sangat disukai berbagai kalangan masyarakat karena mudah dan cepat dalam penyajian serta mengenyangkan sehingga sering dijadikan sebagai makanan pengganti nasi. Untuk mengantisipasi dan mengurangi ketergantungan terhadap terigu dalam pembuatan mie dapat disubsitusi dengan tanaman umbi-umbian seperti talas. Tanaman talas adalah salah satu jenis tanaman utama diantara bermacam umbi-umbian di daerah tropis sebagai sumber karbohidrat. Tanaman talas juga banyak jenisnya, di Sumatera Barat dilaporkan ada 60 varietas lokal talas namun yang banyak ditemui di pasaran adalah dari jenis Colocasia esculenta batang ungu dan batang hijau serta kimpul (Xanthosoma sagittifolium). Penelitian dilakukan dengan perlakuan jenis talas dan bahan fortifikasi untuk memperkaya gizi dan variasi penampilan mie yakni penggunaan ubi jalar merah, wortel, dan bayam. Uji organoleptik terhadap mie yang dihasilkan meliputi warna, aroma, rasa dan tekstur dan analisis kadar air, kadar abu, protein, serat kasar, karbohidrat dan lemak serta pengamatan daya simpan yakni kadar air dan penampakan secara visual selama 3 bulan penyimpanan. Hasil penelitan menunjukkan bahwa perlakuan yang memberikan hasil optimal adalah pada perlakuan pembuatan mie dari talas kimpul dengan subsitusi terigu 50% dan bahan tambahan bayam 7% (T2P3) dengan kadar air produk mie talas 7,40%, karbohidrat 64,54%, serat kasar 2,71%, kadar protein 11,81%, lemak 11,19%, nilai kalori 405,5 kalori dan uji organoleptik disukai oleh panelis.

CATECHIN CONTENT AND ANTIOXIDANT ACTIVITY OF SOME BREWED TEMPERATURE OF BLACK TEA SYRUP Anggraini, Tuty
Jurnal Litbang Industri Vol 1, No 1 (2011)
Publisher : Institution for Industrial Research and Standardization of Industry - Padang

The catechin contents and the antioxidant activity of black tea syrup that brewed at some temperature still poorly understood. It has been investigated whether catechin contents and antioxidant activity of black tea syrup may be affected by hot or cold water.Â The temperature of 30Â°C, 60Â°C, and 90Â°C were used to brew the syrup, and then the catechin and the antioxidant were determined at each temperature by using DPPH radical scavenging activity method. Measurement of DPPH was conducted for 2 minutes reaction time. Catechin contents were determined by using HPLC method. The result of research showed that the catechin and the antioxidant activity affected by temperature tested. Five kinds of catechin derivatives detected in black tea syrup, EGC (epigallocatechin), C (catechin), EGCG (epigallocatechin gallate), EC (epicatechin) and ECG (epicatechin gallate). The highest DPPH scavenging activity of black tea syrup was showed by 30Â°C.ABSTRAKKandungan katechin dan aktivitas antioksidan dari sirup teh hitam yang diseduh pada beberapa temperatur masih belum begitu dipahami. Pada penelitian ini telah diselidiki apakan kandungan katechin dan aktioksidan dipengaruhi oleh air dingin atau air panas. Temperatur 30oC, 60oC, dan 90oC digunakan untuk menyeduh sirup teh hitam lalu ditentukan kandungan katechin dan aktifitas antioksidannya pada masing-masing temperatur menggunakan metode aktifitas perangkap radikal bebas DPPH (dyphenyl pycrylhydrazyl). Pengukuran DPPH dilakukan selama waktu reaksi dua menit. Kandungan katechin ditentukan menggunakan metode HPLC (High Performance Liquid Chromatography). Hasil penelitian menunjukkan bahwa kandungan katechin dan aktifitas antioksidan sirup teh hitam dipengaruhi oleh temperatur yang diuji. Lima jenis turunan katechin terdeteksi dalam sirup teh hitam yaitu EGC (epigallocatechin), C (catechin), EGCG (epigallocatechin gallate), EC (epicatechin) and ECG (epicatechin gallate). Aktifitas perangkap DPPH tertinggi dari sirup teh hitam diperoleh pada temperatur 30oC.

Potensi Pigmen Cassiavera pada Minuman Jahe Instan Sebagai Minuman Fungsional Firdausni, Firdausni; Failisnur, Failisnur; Diza, Yulia Helmi
Jurnal Litbang Industri Vol 1, No 1 (2011)
Publisher : Institution for Industrial Research and Standardization of Industry - Padang

Cassiavera (Cinnamomum burmannii) contains reddish brown to dark brown pigment that can be used as additives in instant ginger drink. The pigment was generated by maceration method in water at initial temperature 25-27ÂºC and 85-100ÂºC with maceration time of 24, 48 and 72 hours. Cassiavera filtrate with optimal color intensity was then added to the ginger powder in the ratio w/v (10:1), (10:2) and (10:3). The potency of cassiavera pigment in the instant ginger was seen from the color intensity by using a spectrophotometer, test of total phenols and panelist preference level of aroma, color, and flavor generated. Results of the research showed that the treatment time of maceration significantly affected the color intensity of the product. The best treatment of cassiavera pigment generating was found on maceration with water at temperature 85-100ÂºC for 48 hours and comparison of ginger powder and cassiavera filtrate 10:3 (w/v) with the highest color intensity 0, 3813 and the color preferred by the panelists. Total phenol was 26.51 ppm, with average values of organoleptic test of taste, color, and aroma were 3.20, 3.40, and 3.40 respectively. The Color intensity was measured by using a spectrophotometer at a wavelength of 556 nm indicated the intensity of color between 0.0345 - 0.3813, and total phenols between 20.47 and 26.51 ppm.ABSTRAKCassiavera (Cinnamomum burmannii) mengandung pigmen berwarna coklat kemerahan sampai coklat tua yang digunakan sebagai bahan tambahan pada minuman jahe instan. Pengambilan pigmen dengan maserasi air pada suhu awal 25-27ÂºC dan 85-100ÂºC dengan lama maserasi 24, 48 dan 72 jam. Filtrat cassiavera dengan intensitas warna optimal yang didapatkan selanjutnya ditambahkan pada jahe bubuk dengan perbandingan antara jahe bubuk dan filtrat cassiavera b/v (10:1), (10:2) dan (10:3). Potensi pigmen cassiavera pada jahe instan dilihat dari intensitas warna dengan menggunakan spektrofotometer, uji total fenol dan tingkat kesukaan fanelis terhadap aroma, warna, dan rasa yang dihasilkan. Hasil penelitian menunjukkan bahwa perlakuan lamanya maserasi berpengaruh nyata terhadap intensitas warna produk. Pada pengambilan pigmen cassiavera didapatkan perlakuan terbaik padaÂ maserasi dengan air pada suhu 85-100ÂºC selama 48 jam dan perbandingan jahe bubuk dengan filtrat cassiavera dalam pembuatan jahe cassiavera instan adalah 10:3 (b/v) dengan intensitas warna tertinggi 0,3813, memiliki total fenol 26,51 ppm, aroma, warna, dan rasa yang disukai oleh panelis Â dengan nilai rata rata Â 3,40; 3,47, dan Â 3,20. Pengujian intensitas warna menggunakan spektrofotometer yang diukur pada panjang gelombang 556 nm menunjukkan intensitas warna antara 0.0345-0.3813, dan total fenol antara 20,47-26,51 ppm.

Pengaruh Penambahan Tepung Tempe Terhadap Mutu Kecap Air Kelapa Silfia, Sifia
Jurnal Litbang Industri Vol 1, No 1 (2011)
Publisher : Institution for Industrial Research and Standardization of Industry - Padang

It had been done the research on effect of tempe flour addition to the quality of coconut water sauce with the aim of reducing dependence on soybean as a raw material of soy sauce and potential use of coconut water waste. The study was conducted with the combined treatment of tempe flour percentage (5% and 10%), and the addition of the preservative sodium benzoate treatment (0.1 g and 0.2 g). The protein level, metal contamination (Pb, Cu, Fe, Zn), microbial contamination and organoleptic tests of the flavor, color, fragrance and product stability during storage were analyzed. The results showed that the addition of tempe flour of 10% with 0.2 grams of the preservative sodium benzoate provide optimal results with a protein content of 6.24%, texture, flavor, and color were preferred and the product keep persitst for more than 8 weeks.ABSTRAKTelah dilakukan penelitian pengaruh penambahan tepung tempe terhadap mutu kecap air kelapa dengan tujuan mengurangi ketergantungan pada kacang kedele sebagai bahan baku pembuatan kecap dan memanfaatkan limbah air kelapa. Penelitian dilakukan dengan kombinasi perlakuan persentase tepung tempe 5% dan 10%, dan perlakuan penambahan pengawet natrium benzoat 0,1 gr dan 0,2 gr. Produk kemudian dianalisis kadar protein, cemaran logam (Pb, Cu, Zn), cemaran mikroba dan uji organoleptik terhadap rasa, warna, aroma dan ketahanan simpan. Hasil penelitian menunjukkan bahwa penambahan tepung tempe 10% dengan pengawet natrium benzoat 0,2 gram memberikan hasil optimal dengan kadar protein 6,24%, tekstur, rasa dan warna disukai serta tahan simpan lebih dari 8 minggu.

Pengaruh Jenis Tepung dan Pengolahan Ikan Terhadap Mutu Tepung Sala Lauk Kamsina, Kamsina; Anova, Inda Three
Jurnal Litbang Industri Vol 1, No 1 (2011)
Publisher : Institution for Industrial Research and Standardization of Industry - Padang

Sala lauk is a specific food of Pariaman City of West Sumatera which is made from rice flour, fish, chilli and other spices, then mixed together, cooked with low heat until smooth. The dough was formed into small balls and then fried. It is now available sala lauk flour mixed with spices, but chilli and fish are not included in the mixture and the flour still has short shelf life. The research was conducted to enrich the nutrients in the sala lauk by adding fish as a protein source. Completely randomized design (CRD) in factorial was used to see the effect of the use of flour, rice flour 100%, rice flour 95% and glutinous rice flour 5%, rice flour 95% and tapioca flour 5% and the variation of fish treatment that was directly dried, cooked in a pressure cooker and steamed. The result showed that sala lauk flour using rice flour 95% and glutinous rice flour 5% with directly dried fish gave preferred result in terms of organoleptic (taste, colour, flavour, and texture), with water content was 8.97%, acid degree was 0.35%, and protein content was 71.31%. Mold/yeast, salmonella and other bacteria were not found and the product had shelf life for 3 months.ABSTRAKSala lauk merupakan makanan khas Pariaman Sumatera Barat yang terbuat dari bahan baku tepung beras, ikan, cabe, dan bumbu lainnya dengan cara diadon, dimasak dengan api kecil sampai kalis. Adonan dibentuk menjadi bulat-bulat kecil dan kemudian digoreng. Saat ini sudah tersedia tepung sala lauk yang dicampur langsung dengan bumbubumbu, tetapi cabe dan ikan belum termasuk dalam campuran, dan tepung tersebut masih memiliki daya tahan simpan yang masih rendah. Penelitian dilakukan untuk memperkaya nutrisi dalam sala lauk dengan menambahkan sumber protein yaitu ikan. Rancangan acak lengkap (RAL) secara faktorial digunakan untuk melihat pengaruh tiga perlakuan pemakaian tepung yaitu tepung beras 100%, tepung beras 95% dan tepung beras ketan 5%, tepung beras 95% dan tepung tapioka 5% dan variasi pengolahan ikan yaitu langsung dikeringkan, dipresto serta dikukus. Hasil penelitian menunjukkan, tepung sala lauk yang menggunakan komposisi tepung beras 95% dan tepung beras ketan 5% dengan variasi pengolahan ikan yang langsung dikeringkan memberikan hasil yang lebih disukai dari segi organoleptik (rasa, warna, aroma dan tekstur), dengan kadar air 8,97%, kadar abu 0,44%, derajat asam 0,35% dan kadar protein 71,20%. Kapang/khamir, Salmonella dan bakteri lainnya tidak ditemukan, dan memiliki ketahanan simpan selama 3 bulan.

Pengaruh Jenis Tepung dan Pengolahan Ikan Terhadap Mutu Tepung Sala Lauk Kamsina Kamsina; Inda Three Anova
Jurnal Litbang Industri Vol 1, No 1 (2011)
Publisher : Institution for Industrial Research and Standardization of Industry - Padang

Sala lauk is a specific food of Pariaman City of West Sumatera which is made from rice flour, fish, chilli and other spices, then mixed together, cooked with low heat until smooth. The dough was formed into small balls and then fried. It is now available sala lauk flour mixed with spices, but chilli and fish are not included in the mixture and the flour still has short shelf life. The research was conducted to enrich the nutrients in the sala lauk by adding fish as a protein source. Completely randomized design (CRD) in factorial was used to see the effect of the use of flour, rice flour 100%, rice flour 95% and glutinous rice flour 5%, rice flour 95% and tapioca flour 5% and the variation of fish treatment that was directly dried, cooked in a pressure cooker and steamed. The result showed that sala lauk flour using rice flour 95% and glutinous rice flour 5% with directly dried fish gave preferred result in terms of organoleptic (taste, colour, flavour, and texture), with water content was 8.97%, acid degree was 0.35%, and protein content was 71.31%. Mold/yeast, salmonella and other bacteria were not found and the product had shelf life for 3 months.ABSTRAKSala lauk merupakan makanan khas Pariaman Sumatera Barat yang terbuat dari bahan baku tepung beras, ikan, cabe, dan bumbu lainnya dengan cara diadon, dimasak dengan api kecil sampai kalis. Adonan dibentuk menjadi bulat-bulat kecil dan kemudian digoreng. Saat ini sudah tersedia tepung sala lauk yang dicampur langsung dengan bumbubumbu, tetapi cabe dan ikan belum termasuk dalam campuran, dan tepung tersebut masih memiliki daya tahan simpan yang masih rendah. Penelitian dilakukan untuk memperkaya nutrisi dalam sala lauk dengan menambahkan sumber protein yaitu ikan. Rancangan acak lengkap (RAL) secara faktorial digunakan untuk melihat pengaruh tiga perlakuan pemakaian tepung yaitu tepung beras 100%, tepung beras 95% dan tepung beras ketan 5%, tepung beras 95% dan tepung tapioka 5% dan variasi pengolahan ikan yaitu langsung dikeringkan, dipresto serta dikukus. Hasil penelitian menunjukkan, tepung sala lauk yang menggunakan komposisi tepung beras 95% dan tepung beras ketan 5% dengan variasi pengolahan ikan yang langsung dikeringkan memberikan hasil yang lebih disukai dari segi organoleptik (rasa, warna, aroma dan tekstur), dengan kadar air 8,97%, kadar abu 0,44%, derajat asam 0,35% dan kadar protein 71,20%. Kapang/khamir, Salmonella dan bakteri lainnya tidak ditemukan, dan memiliki ketahanan simpan selama 3 bulan.

Pengaruh Penambahan Crude Stearin Minyak Kelapa Sawit Terhadap Kestabilan Dark Chocolate Hendri Muchtar; Yulia Helmi Diza
Jurnal Litbang Industri Vol 1, No 1 (2011)
Publisher : Institution for Industrial Research and Standardization of Industry - Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24960/jli.v1i1.588.1-7

The research about effect of crude palm oil stearin addition to the stability of dark chocolate had been caried out with the purpose to determine the effect of crude stearin as a substitute of cocoa butter and as a stabilizer of dark chocolate during storage. A number of stearin used was varied from 0%, 5%, 10%, 15%, 20% and 34%, while other ingredients (cocoa powder, cocoa fat, sugar, lecithin and salt) were given in the same amount. The properties of chocolate product which had been analyzed were the melting point, fat content and free fatty acids (FFA) content, then it was conducted storage stability and the organoleptic test. The results showed that the higher concentration of stearin used, the stability of the chocolate tends to be better with a melting point of chocolate is also higher (ranging from 49oC to 55oC). During storage the FFA levels increased from 0,15% in the first week to 0,71% in the fifth week. This numbers are still within the limits required by Indonesia National Standard (SNI) 01-3748-1995 on cocoa butter. The fat content decreased from 40% to 35% during 7 weeks storage. From the results of organoleptic test, treatment of 10% crude strearin addition was preferred by panelist.ABSTRAKPenelitian pengaruh penambahan crude stearin minyak kelapa sawit terhadap kestabilan dark chocolate telah dilakukan dengan tujuan untuk mengetahui pengaruh crude stearin sebagai pengganti lemak cokelat sekaligus sebagai stabilisator dark chocolate selama penyimpanan. Jumlah crude stearin yang digunakan divariasikan mulai dari 0%, 5%, 10%, 20% dan 34%, sedangkan bahan-bahan lain (cokelat bubuk, lemak cokelat, gula, lesitin dan garam) diberikan dalam jumlah yang sama. Kepada produk cokelat yang dihasilkan dilakukan analisa titik leleh, kadar lemak dan asam lemak bebas (FFA), selanjutnya dilakukan uji ketahanan simpan serta uji organoleptik. Hasil penelitian menunjukkan bahwa semakin tinggi konsentrasi crude stearin yang digunakan, kestabilan cokelat cenderung lebih baik dengan titik leleh cokelat juga semakin tinggi (berkisar dari 49oC sampai 55oC). Selama penyimpanan, kadar FFA semakin meningkat dari 0,15% pada minggu pertama menjadi 0,71% pada minggu kelima. Angka ini masih berada dalam batas yang dipersyaratkan pada Standar Nasional Indonesia (SNI) 01-3748-1995 tentang lemak kakao. Kadar lemak cenderung mengalami penurunan dalam penyimpanan selama 7 minggu, yaitu dari 40% sampai 35%. Dari hasil uji organoleptik, perlakuan penambahan stearin 10% memberikan hasil yang cenderung lebih disukai oleh panelis.

Pengaruh Beberapa Jenis Talas (Xanthosoma sp) dan Bahan Fortifikasi Pangan dalam Pembuatan Mie Wilsa Hermianti; Silfia Silfia
Jurnal Litbang Industri Vol 1, No 1 (2011)
Publisher : Institution for Industrial Research and Standardization of Industry - Padang

Noodle is a food product processed from wheat flour is very popular among many people because it is easy and fast in the serving as well as glut so it is often used as a food substitute for rice. To anticipate and reduce dependence on wheat, the making of noodles can be replaced with crops such as taro tubers. Taro plant is one of the major crops among the various types of tubers in the tropics as a source of carbohydrate.There are 60 local varieties of taro reported in West Sumatra, but only three types of taro are easily found in the market. They are purple stems Colocasia esculenta, green stems Colocasia esculenta and kimpul taro (Xanthosoma sagittifolium). Research was carried out by combination of treatment type of taro and fortification materials (red sweet potatoes, carrots, and spinach) to enrich the nutrional and to vary the appearance of noodles. Organoleptic tests of the noodle produced including color, aroma, flavor, texture, and analysis of water content, ash content, protein, crude fiber, carbohydrates and fats as well as observations of the shelf life of the products based on water content and visual appearance for 3 months of storage. Research results indicate that the optimal results was the treatment of taro noodle from kimpul taro substitute with 50% flour and 7% additional material of spinach (T2P3). The taro noodles product had moisture content of 7.40%, 64.54% of carbohydrate, crude fiber of 2.71%, protein content of 11.81%, 11.19% of fat, calorific value of 405.5 calorie and organoleptic tests were preferred by panelists.ABSTRAKMie merupakan produk pangan hasil olahan tepung terigu yang sangat disukai berbagai kalangan masyarakat karena mudah dan cepat dalam penyajian serta mengenyangkan sehingga sering dijadikan sebagai makanan pengganti nasi. Untuk mengantisipasi dan mengurangi ketergantungan terhadap terigu dalam pembuatan mie dapat disubsitusi dengan tanaman umbi-umbian seperti talas. Tanaman talas adalah salah satu jenis tanaman utama diantara bermacam umbi-umbian di daerah tropis sebagai sumber karbohidrat. Tanaman talas juga banyak jenisnya, di Sumatera Barat dilaporkan ada 60 varietas lokal talas namun yang banyak ditemui di pasaran adalah dari jenis Colocasia esculenta batang ungu dan batang hijau serta kimpul (Xanthosoma sagittifolium). Penelitian dilakukan dengan perlakuan jenis talas dan bahan fortifikasi untuk memperkaya gizi dan variasi penampilan mie yakni penggunaan ubi jalar merah, wortel, dan bayam. Uji organoleptik terhadap mie yang dihasilkan meliputi warna, aroma, rasa dan tekstur dan analisis kadar air, kadar abu, protein, serat kasar, karbohidrat dan lemak serta pengamatan daya simpan yakni kadar air dan penampakan secara visual selama 3 bulan penyimpanan. Hasil penelitan menunjukkan bahwa perlakuan yang memberikan hasil optimal adalah pada perlakuan pembuatan mie dari talas kimpul dengan subsitusi terigu 50% dan bahan tambahan bayam 7% (T2P3) dengan kadar air produk mie talas 7,40%, karbohidrat 64,54%, serat kasar 2,71%, kadar protein 11,81%, lemak 11,19%, nilai kalori 405,5 kalori dan uji organoleptik disukai oleh panelis.

CATECHIN CONTENT AND ANTIOXIDANT ACTIVITY OF SOME BREWED TEMPERATURE OF BLACK TEA SYRUP Tuty Anggraini
Jurnal Litbang Industri Vol 1, No 1 (2011)
Publisher : Institution for Industrial Research and Standardization of Industry - Padang

The catechin contents and the antioxidant activity of black tea syrup that brewed at some temperature still poorly understood. It has been investigated whether catechin contents and antioxidant activity of black tea syrup may be affected by hot or cold water. The temperature of 30°C, 60°C, and 90°C were used to brew the syrup, and then the catechin and the antioxidant were determined at each temperature by using DPPH radical scavenging activity method. Measurement of DPPH was conducted for 2 minutes reaction time. Catechin contents were determined by using HPLC method. The result of research showed that the catechin and the antioxidant activity affected by temperature tested. Five kinds of catechin derivatives detected in black tea syrup, EGC (epigallocatechin), C (catechin), EGCG (epigallocatechin gallate), EC (epicatechin) and ECG (epicatechin gallate). The highest DPPH scavenging activity of black tea syrup was showed by 30°C.ABSTRAKKandungan katechin dan aktivitas antioksidan dari sirup teh hitam yang diseduh pada beberapa temperatur masih belum begitu dipahami. Pada penelitian ini telah diselidiki apakan kandungan katechin dan aktioksidan dipengaruhi oleh air dingin atau air panas. Temperatur 30oC, 60oC, dan 90oC digunakan untuk menyeduh sirup teh hitam lalu ditentukan kandungan katechin dan aktifitas antioksidannya pada masing-masing temperatur menggunakan metode aktifitas perangkap radikal bebas DPPH (dyphenyl pycrylhydrazyl). Pengukuran DPPH dilakukan selama waktu reaksi dua menit. Kandungan katechin ditentukan menggunakan metode HPLC (High Performance Liquid Chromatography). Hasil penelitian menunjukkan bahwa kandungan katechin dan aktifitas antioksidan sirup teh hitam dipengaruhi oleh temperatur yang diuji. Lima jenis turunan katechin terdeteksi dalam sirup teh hitam yaitu EGC (epigallocatechin), C (catechin), EGCG (epigallocatechin gallate), EC (epicatechin) and ECG (epicatechin gallate). Aktifitas perangkap DPPH tertinggi dari sirup teh hitam diperoleh pada temperatur 30oC.

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-

Journal Mail Official
-

Editorial Address
-

Location
Kota adm. jakarta selatan,

Dki jakarta

INDONESIA

Abstract

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Abstract

Home Page

OAI Link

Editorial Team

Contact

Reviewer

Google Scholar

Contact Name -

Contact Email -

Phone -

Journal Mail Official -

Editorial Address -

Location Kota adm. jakarta selatan, Dki jakarta INDONESIA

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Contact Name
-

Contact Email
-

Phone
-

Journal Mail Official
-

Editorial Address
-

Location
Kota adm. jakarta selatan,

Dki jakarta

INDONESIA