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Pengaruh Penambahan Maizena Terhadap Kadar ΒetaKaroten, Aktivitas Antioksidan Dan Sifat Organoleptik Sup Labu Kuning Instan Dian Eka Rahma Yulianti; Nurrahman Nurrahman; Wikanastri Hersoelistyorini
Jurnal Pangan dan Gizi Vol 10, No 2 (2020): Kajian Pangan dan Gizi
Publisher : Universitas Muhammadiyah Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26714/jpg.10.2.2020.61-72

Yellow pumpkin is one of the agricultural products that contain beta-carotene and high antioxidant compounds so it is good for body health. Pumpkin processed into Instant yellow pumpkin soup with added cornstarch and set flour formulation Maize is the best for instant soup. The purpose of this study was to determine the effect of maize addition to beta-carotene levels, antioxidant activity and organoleptic instant yellow pumpkin soup. The factor of this research is the addition treatment cornstarch (0%, 2%, 4%, 6%). Tests carried out are beta-carotene levels, antioxidant activity, and organoleptic (color, aroma, taste, texture). Results research that has been done, obtained the best levels of antioxidants (12.90%) in the sub pumpkin instant yellow with the addition of cornstarch 4%, the best content of beta-carotene (43.20 ppm) in the instant yellow pumpkin sub with the addition of 4% cornstarch, and organoleptic properties (color, aroma, taste, and texture with a degree of liking) best on the yellow pumpkin sub instant with the addition of cornstarch 4%. Moisture content of 10.45%, ash content of 1.12%, 6.72% protein content, 11.01% fat content, 16.16% fiber content, and total carbohydrate by 54.54%.

Total Mikroba, Kekenyalan, dan Sifat Sensori Tahu Putih Berdasakan Perbedaan Lama Perendaman dalam Larutan Belimbing Wuluh Reza Maulana; Nurrahman Nurrahman; Agus Suyanto
Jurnal Pangan dan Gizi Vol 11, No 2 (2021): Kajian Pangan dan Gizi
Publisher : Universitas Muhammadiyah Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26714/jpg.11.2.2021.142-150

White tofu is one type of tofu that is often consumed by the people of Indonesia. The process of making white tofu in Indonesia is generally still manual. White tofu has complete nutritional content so it is very easy to be contaminated by microbes. Microbial growth can be inhibited by using various methods, one of which is by giving a liquid with a low pH (acid) or by using flavonoid compounds, saponins, tannins and alkaloids. These compounds are contained in starfruit fruit so that it can be used to reduce the total microbes in white tofu. The value of the total number of plates that are safe in tofu according to the Food and Agriculture Organization is 1 x106 colon /gram. The general objective of the study was to determine the inhibition of starfruit solution against microbial growth, elasticity and sensory of white tofu. When immersion with star fruit solution concentration of 15% is 0, 2, 4, 6, and 8 hours. White tofu analyzed total microbial, elasticity, and sensory properties. The treatment has an influence on the total microbial, elasticity and sensory properties with the best value of 3.3 x105 colonies, elasticity 365.018 gf/mm or 3.577 N mm, and the average sensory test value of 3.05. The conclusion of the study of white tofu immersion with 15% starfruit solution showed a real difference, so that the best immersion treatment was immersion treatment for 4 hours.

Pengaruh Lama Perkecambahan Terhadap Rendemen, Kadar Antosianin, Vitamin E dan Aktivitas Antioksidan Kecambah Kedelai Hitam Siti Asropah; Nurrahman Nurrahman; Wikanastri Hersoelistyorini
Jurnal Pangan dan Gizi Vol 9, No 1 (2019): Kajian Pangan dan Gizi
Publisher : Universitas Muhammadiyah Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26714/jpg.9.1.2019.39-52

Germination process can increase the nutritional value and functional properties that exist in the grain. Black soybeans contains anthocyanin, vitamin E and antioxidant activity that is beneficial to health. This study aims to determine the effect of long germination on rendement, anthocyanin, vitamin E levels and antioxidant activity on black soybean sprouts. Preliminary studies includes optimalization the length of germination and characterization of black soybean seeds. The main research includes physical and chemical analysis of rendement measurement, anthocyanin content, vitamin E content and antioxidant activity. Then, analysis of proximate content on black soybean sprouts best result from long treatment of germination. The data measurement of black soybeans sprouts was obtained a digital scales and spectrophotometer UV-Vis. The results showed that (1) The germination has an effect on rendement, anthocyanin, vitamin E levels and antioxidant activity on black soybean sprouts. (2) In 40 hours long germination treatment showed anthocyanin level (91.84 mg / 10 g) and antioxidant activity (24.51% RSA) has the highest value. (3) The longer of germination has higher value on rendement percentage and vitamin E content.

SIFAT KIMIA DAN ORGANOLEPTIK TELUR ASIN MEDIA ABU SERABUT KELAPA DENGAN PERBEDAAN LAMA PENYIMPANAN Onny Cahyasari; wikanastri hersoelistyorini; nurrahman nurrahman
Jurnal Pangan dan Gizi Vol 9, No 2 (2019): Kajian Pangan dan Gizi
Publisher : Universitas Muhammadiyah Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26714/jpg.9.2.2019.41-53

Eggs are easily damaged foodstuffs. Salting is one way to minimize damage and maintain storage. Salting generally uses NaCl salt for curing. In this study salting is done by utilizing the salt content of KCl in coconut fiber ash. This study aims to analyze the Total Volatile Nitrogen (TVN), rancidity (TBA) and organoleptic of salted eggs coconut fiber ash in during storage. This study used a Completely Randomized Design of One factor, with four different storage periods; 0 week storage, 1st week storage, 2nd week storage, and 3rd week storage were analyzed TVN (Total Volatile Nitrogen), TBA (Thiobarbituric Acid) and organoleptic properties (hedonic quality). Data on TVN and TBA were analyzed using ANOVA while organoleptic was analyzed using Friedmen test. The highest result of TVN at 3rd week was 1,902 mg / 100g and the highest TBA result also at 3rd week was 7.8 mg / kg of material. TVN and TBA results were noticeable differences during storage. The longer stored then the TVN and TBA levels will increase. The organoleptic test produces salted eggs with color, aroma, texture that were not significantly different during storage and taste that was getting salty during storage. Based on the results of organoleptic test, salted eggs of coconut fiber ash were still acceptable until 3rd week.

SIFAT FISIK, SIFAT ORGANOLEPTIK DAN AKTIVITAS ANTIOKSIDAN SUSU BUBUK KEDELAI HITAM BERDASARKAN KONSENTRASI TWEEN 80 Riska Ciptasari; Nurrahman Nurrahman
Jurnal Pangan dan Gizi Vol 10, No 1 (2020): Kajian Pangan dan Gizi
Publisher : Universitas Muhammadiyah Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26714/jpg.10.1.2020.49-63

Soy milk is one alternative to cow's milk for lactusa intolerance patients. The utilization of black soy less is attention and not as popular as yellow soybean because of the color that is less interesting. Another alternative in the processing of milk is the manufacture of milk powder. Processing of instant soy milk powder using foam-mat drying method required addition of filler material ie maltodextrin and Tween 80. With the addition of proper Tween 80 concentration expected to produce more stable milk powder. The general purpose of this research is to know the effect of Tween 80 concentration variation on physical properties, organoleptic properties and antioxidant activity of black soybean milk powder. Experimental method of experimental type using Completely Randomized Design (RAL) monofactor with Factor addition of Tween 80 concentration (0, 0,25, 0,5, 0,75 and 1 percent). The product analyzed physical properties (water absorption, moisture content, solubility and settling rate), organoleptic properties and antioxidant activity. The best result of antioxidant activity was 33,70% RSA at concentration 0,25%, water absorption 2,77 ml / g at concentration 0,25%, water content, 8,98% at concentration 0,25%, solubility 84,435% at a concentration of 0.75% and a precipitation rate of 10 s at a concentration of 0.25%. While the best organoleptic test is at concentration 0.25%. The conclusions of the research on black soybean milk powder with the addition of Tween 80 concentration showed a real difference for each test conducted where black soybean milk powder with the addition of Tween 80 0.25% concentration was the best treatment.

Pengaruh Penggunaan Sisik Ikan Bandeng Terhadap Kadar Kalsium, Daya Kembang dan Organoleptik Camilan Stick Chairunnisa Nur Aulia Fajari; Muh Yusuf; nurrahman nurrahman
Jurnal Pangan dan Gizi Vol 9, No 1 (2019): Kajian Pangan dan Gizi
Publisher : Universitas Muhammadiyah Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26714/jpg.9.1.2019.65-73

Stick is snack which favoured by society but lack of nutrition content, especially mineral calcium, then needed an other materials to completed it with the addition of Chanos fish scales fluor. The general purposed of this research was to determined the effect of used Chanos fish scales to calcium levels, swell strength and organoleptic of stick snack. The method of this research is experiments methods used completely randomized design (RAL) monofaktorial by a factor variation of addition 0%, 1%, 2%, 3%, 4% and 5%. Statistical analysis showed an influence from the addition of fish scales fluor to calcium levels and organoleptic that showed from p value <0,05, but no influenced on the swell strength. The best treatment of this research are 3% additional of fish scales with calcium levels 0,38%, swell strength value 1,375%, quality scale value 3,675 and hedonic value 2,83. The conclution of this research are more higher percentage additional of Chanos fish scales will increase calcium level and hedonic value but degraded the quality scale value.

Pemanfaatan Sari Kulit Buah Naga sebagai Upaya Peningkatan Nilai Fisik dan Sensori pada Permen Jelly Sari Tempe Siswi Sekar Sari; Nurrahman Nurrahman; Nurhidajah Nurhidajah
Jurnal Pangan dan Gizi Vol 11, No 1 (2021): Kajian Pangan Dan Gizi
Publisher : Universitas Muhammadiyah Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26714/jpg.11.1.2021.60-72

Dragon fruit skin is organic waste which has high content of vitamin C, pectin and anthocyanin and can be used as raw material for making jelly candy because pectin is one of the gelling agent and anthocyanin is a natural dye that can make sari tempe jelly candy more interesting. The aim of this research is to determine the effect of adding the dragon fruit peels extract(10,20,30, and 40%), towards the dissolved solids, elasticity, antioxidant activity, and sensory properties in jelly candies from extract of tempe.Then, there was physical testing (the amount of dissolved solids and elasticity), and sensory properties (aroma, taste, color, and texture). The result of the research showed that the addition of the concentration of dragon fruit skin extract on jelly candies of tempe extract had very significant effect on dissolved solids, elastisity, color, and texture, but there were not significantly different from aroma and its taste. The best treatment was in the addition of 40% extract of dragon fruit skin.

Pengenalan Teknologi Sederhana Pengolahan Saus Berbasis Pangan Lokal pada Anggota ‘Aisyiyah Kota Semarang Siti Aminah; Wikanastri Hersoelistyorini; Nurrahman Nurrahman
Jurnal Surya Masyarakat Vol 3, No 2 (2021): Mei 2021
Publisher : Universitas Muhammadiyah Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26714/jsm.3.2.2021.115-122

Sauce and chili sauce are pasta product that well-known and popular in the community. These products can be processed through simple technology at the household level. Local food ingredients such as papaya, pumpkin, and chayote can be used as raw material for sauces. Not many people know about the appropriate technology for processing sauces with local ingredients. This activity aims to introduce appropriate technology for processing sauces and chili sauce with local ingredients. The method of implementing activities was through training includes lectures for theoretical material on food safety, food additives and packaging. While the introduction of appropriate technology was carried out by practicum. For carrying out practicum, participants were divided into groups (5 people / group). The target of this activity is 50 members of 'Aisyiyah Semarang City. In general, the results of the activities showed that the target participants were 50 people, and all of them followed a series of activities until the end. The participation and activeness of all participants in lectures and practicum showed that this service activity has been achieved. The results of the practicum in the form of sauce and chili sauce products generally had fairly good characteristics. This shows that the appropriate technology for processing sauces and chili sauce with diversification of local food ingredients can be understood and implemented properly by all participants. This activity has been able to provide new information to participants in addition to the processing process as well as the utilization of local materials that have not been known to the participants beforehand.

Evaluasi Komposisi Zat Gizi dan Senyawa Antioksidan Kedelai Hitam dan Kedelai Kuning Nurrahman Nurrahman
Jurnal Aplikasi Teknologi Pangan Vol 4, No 3 (2015): Agustus 2015
Publisher : Indonesian Food Technologists

Kedelai merupakan salah satu bahan pangan yang penting bagi masyarakat Indonesia, yang dikonsumsi untuk memenuhi kebutuhan zat gizi protein. Kedelai dikonsumsi masyarakat sebagai lauk dan camilan. Tujuan penelitian ini untuk membandingkan zat gizi kedelai hitam dengan kedelai kuning. Kedelai dari ketiga varietas sebelum dianalisa terlebih dahulu dihancurkan untuk dibuat tepung kedelai. Tepung kedelai yang diperoleh diayak dengan saringan ukuran 60 mesh. Analisa yang dilakukan meliputi analisa proksimat, asam amino, asam lemak, antosianin dan isoflavon (daidzein dan genistein). Ketiga varietas kedelai memiliki kandungan kimia yang menjadi parameter penelitian kecuali antosianin. Antosianin hanya ada di kedelai hitam, sedangkan kedelai kuning tidak terdeteksi. Ketiga varietas sama-sama mengandung 14 asam amino.

Pengenalan Teknologi Sederhana Pengolahan Saus Berbasis Pangan Lokal pada Anggota ‘Aisyiyah Kota Semarang Siti Aminah; Wikanastri Hersoelistyorini; Nurrahman Nurrahman
Jurnal Surya Masyarakat Vol 3, No 2 (2021): Mei 2021
Publisher : Universitas Muhammadiyah Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26714/jsm.3.2.2021.115-122

Sauce and chili sauce are pasta product that well-known and popular in the community. These products can be processed through simple technology at the household level. Local food ingredients such as papaya, pumpkin, and chayote can be used as raw material for sauces. Not many people know about the appropriate technology for processing sauces with local ingredients. This activity aims to introduce appropriate technology for processing sauces and chili sauce with local ingredients. The method of implementing activities was through training includes lectures for theoretical material on food safety, food additives and packaging. While the introduction of appropriate technology was carried out by practicum. For carrying out practicum, participants were divided into groups (5 people / group). The target of this activity is 50 members of 'Aisyiyah Semarang City. In general, the results of the activities showed that the target participants were 50 people, and all of them followed a series of activities until the end. The participation and activeness of all participants in lectures and practicum showed that this service activity has been achieved. The results of the practicum in the form of sauce and chili sauce products generally had fairly good characteristics. This shows that the appropriate technology for processing sauces and chili sauce with diversification of local food ingredients can be understood and implemented properly by all participants. This activity has been able to provide new information to participants in addition to the processing process as well as the utilization of local materials that have not been known to the participants beforehand.

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