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Karakteristik Fisika-Kimia Kulit Singkong Asal Samarinda dan Akseptabilitas Sensoris Keripiknya Sebagai Camilan Diet Krishna Purnawan Candra; Ainudin Ainudin; Muhammad Arifin; Yuliani Yuliani
agriTECH Vol 40, No 4 (2020)
Publisher : Faculty of Agricultural Technology, Universitas Gadjah Mada, Yogyakarta, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (109.043 KB) | DOI: 10.22146/agritech.35291

Abstract

The aim of this research was to determine the physicochemical characteristics of cassava peel and the sensory acceptability of its chip form three varieties generally planted in Samarinda, e.g. Pacar, Kuning/Mentega, and Buton cassava. The flour of the three cassavas pulp has HCN content of 14.04, 12.02, and 19.38 mg/kg. A single factor experiment arranged in Completely Randomized Design and each treatment was repeated nine times. Thickness, moisture content, crude fibre content, and ash content of the casava peel were observed, as well as hedonic and quality hedonic sensory acceptability of cassava peel chips for crispiness, taste, aroma, and colour. The result showed that except moisture content, the peel of the three cassava varieties was significantly different (p<0.05) for the thickness, crude fibre content and ash content. The moisture content of the three cassava varieties was around 66.70-70.07%. Peel of Pacar, Kuning/Mentega and Buton cassava has a thickness of 1.52, 2.32, and 1.84 mm, the crude fibre content of 2.70, 2.18, 1.68%, and ash content of 1.19, 2.18, and 0.94%, respectively. The cassava peel chips of the three cassava varieties were significantly different (p<0.05) for hedonic and quality hedonic acceptability (crispiness, taste, aroma, and colour). Pacar cassava showed the most acceptable for crispiness and taste, which has a hedonic and hedonic quality scale of 4.50 (1-7, crispy moderately to crispy) and 5.35 (1-7, taste moderately like cassava to taste like cassava).
Chemical Profile and Observing Honey Adulteration Using Fourier Transform Infrared (FTIR) Spectroscopy and Multivariate Calibration Sulistyo Prabowo; Yudha Agus Prayitno; Yuliani
Journal of Food and Pharmaceutical Sciences Vol 8, No 1 (2020): J. Food Pharm. Sci
Publisher : Institute for Halal Industry and System (IHIS) Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jfps.653

Abstract

Honey is a complex mixture that contains nutrients and bioactive composition and chemical compositionthat is needed by the human body. Honey is also rich in antioxidants because it is prone to falsification given its manyproperties. This study discusses the chemical and nutritional profiles and the observation of counterfeiting in honey usingthe infrared septicroscopy method. The honey used is obtained from providers of native honey from Kalimantan forestswith 3 kinds of honey brands, namely Mahuka A (MHA), Mahuka B (MHB) and Mahuka C (MHC). Tests of chemicaland nutritional profiles included Water content, ash content, protein content, fat content and calcium levels followed byhoney counterfeiting observation using the Fourier Transform Infrared (FTIR) method with a combination of Partial leastsquare (PLS) calibration model and Principle Component Regression (PCR). The results of all honey samples havevarying values in the water content between 26.75 - 31.00%. Ash content of 0.10 -0.16%. Protein content 0.24 - 0.88%fat content 0.08 -0.44% carbohydrate content. Observation of FTIR honey counterfeiting is used to replace the authenticity of Honey (MH). FTIR combined with Partial Least Square (PLS) was optimized in the subsequent testing ofa mixture of sucrose (MCS) with native honey (MH). Calibration models were taken in a combination of regions 1423 -1825 cm-1. A high coefficient of determination (R2) of 0.9960 with a calibration value (RMSEC) of the root error of thesquare root low of 0.0898% v / v was successfully understood in the MHA on the PLS model. high R2 values and lowRMSEC and RMSEP values on calibration and validation assessments with both accuracy and precision models used.
ANALISIS RENDEMEN DAN SIFAT FISIKA-KIMIA GELATIN KULIT IKAN TENGGIRI (Acanthocybium solandri) YANG DIPRODUKSI DENGAN METODE ASAM Yuliani -
PROSIDING SEMINAR KIMIA SEMINAR NASIONAL KIMIA 2014
Publisher : PROSIDING SEMINAR KIMIA

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Abstract

Penelit ian ini bertujuan untuk mengetahui pengaruh berbagai konsentrasi asam klo rida (HCl) dan lama perendaman dalam larutan asam klo rida terhadap rendemen, kadar air, kadar protein, dan kekuatan gel gelatin yang diekstrak dari ku lit ikan tenggiri. Penelitian menggunakan rancangan acak lengkap dua factor, dengan factor pertama adalah konsentrasi HCl masing -masing 4%, 6%, dan 8%, sedangkan factor kedua adalah lama perendaman dalam larutan HCl selama 48 jam, 72 jam, dan 96 jam, masing -masing dengan 3 ulangan. Hasil penelit ian menunjukkan konsentrasi HCl dan lama perendaman dalam larutan HCl berpengaruh terhadap rendemen, kadar air, kadar protein , dan kekuatan gel dari gelatin yang dihasilkan. Hasil terbaik diperoleh dari ko mbinasi perlakuan konsentrasi HCl 4% dan lama perendaman 48 jam, dengan nilai rendemen 5,62%, kadar air 12,35%, kadar protein 80,08%, dan kekuatan gel 29,50 bloom.
EFEK SUHU DAN LAMA PEMANASAN TERHADAP SIFAT FISIKA-KIMIA BUBUK PEWARNA DARI KELOPAK BUNGA ROSELA (Hibiscuss sabdariffa L.) YANG DIHASILKAN Yuliani -
PROSIDING SEMINAR KIMIA SEMINAR NASIONAL KIMIA 2013
Publisher : PROSIDING SEMINAR KIMIA

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Abstract

Roselle (Hibiscus sabdariffa L.) calyces can be used as natural food colorant. The objective of this study is to observe the effect of drying time and temperature on physical and chemical characteristic of rosela calyces powder. The experiment is arranged in Completely Randomized Design and each treatment is replicated by three times. The factors are drying temperature (60, 70, 80 C) and drying time (5, 7, 9 h). The results showed that the combined treatment of drying temperature at 80 C and drying time for 5 h gave the best result, i.e yield of 9.46 %, water absorption of 1.92 g/g sampel, color intensity of 1 % rosella calyces powder solution showed an absorbance of 0.28 at 605 nm, water content 6.42 %, ash content 0.51 %, and total acid of 5.14 % as malic acid.
Pengaruh Suhu Dan Lama Pengeringan Terhadap Sifat Kimia Dan Organoleptik Sale Pisang Kapas (Musa Comiculata) Marwati Marwati; Yuliani Yuliani; Yulian Andriyani; Mentari Mentari
JURNAL KIMIA MULAWARMAN Vol 15 No 1 (2017)
Publisher : Jurusan Kimia Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Mulawarman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30872/jkm.v15i1.494

Abstract

Banana “kapas” is an original banana cultivar from Samarinda, with the characteristics at the time of mature is yellow fruit skin color, flesh color yellowish white and has a sweet taste. During this time the banana kapas has not been utilized properly. Based on the characteristics possessed by banana kapas can be processed into the processed products sale banana. This study aims to determine the effect of temperature and drying time on the chemical properties of sale of banana kapas produced, the level of panelist reception at organoleptic test and to get the time and temperature of the dryer that produces a quality banana sale based on chemical properties and organoleptic. The results showed that the temperature and duration of the dryer and its interactions had the significant effect on water content, ash content, vitamin C and reducing sugar content. Treatment with temperature 75oC and 21 hours drying time gave the best result with water content, ash content, vitamin C and reducing sugar are 32.80%, 1.13%, 60.65 mg/g and 16.08% respectively. For hedonic test, hedonic values of color, flavor, aroma and texture is like the hedonic quality of brown, sweet taste, rather banana flavored and hard texture.
PHYSICAL CHARACTERISTICS OF KEPOK, TALAS, AND CAVENDISH BANANAS FLOUR Krishna Purnawan Candra; Anis Sofianur; Bernatal Saragih; Yuliani Yuliani
Food ScienTech Journal Vol 3, No 1 (2021)
Publisher : University of Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33512/fsj.v3i1.12476

Abstract

Banana flour is one of the semi-finished products which processed aims to maintain shelf life, provide goods for diver food products, facilitate packaging and transportation. This research aimed to determine and compare the physical characteristics of flour from three banana species, i.e., Kepok (Musa acuminata x balbisiana), Talas (Musa acuminata Colla var. Talas), and Cavendish (Musa acuminata Colla var. Cavendish). This research is a single factor experiment arranged in a completely randomized design with three (banana species) treatments and five replications. Data were analyzed by ANOVA except for wettability data, and gelatinization profile is processed using the Kruskal-Wallis test. The experimental parameters were swelling power, starch solubility, bulk density, water absorption capacity, oil absorption, and color. The results showed that swelling power and oil absorption of the banana flour from the three banana species are not significantly different (p > 0.05) but significantly different (p < 0.05) for solubility, bulk density, wettability, water absorption capacity, and color. Gelatinization temperature for Kepok, Talas, and Cavendish banana flour was 79.45°C, 81.45°C, and 78.20°C, respectively. In this research, we found that the physical properties of Talas banana flour are in between the physical properties of Kepok and Cavendish banana flour.
Profil Organoleptik Dan Kandungan Gizi Naget Ikan Gabus Yang Difortifikasi Kecambah Kacang Hijau Yuliani Yuliani; Muhammad Fahri; Marwati Marwati; Krishna Purnawan Candra
Jambura Fish Processing Journal Vol 3, No 2 (2021): VOLUME 3 NOMOR 2, JULY 2021
Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37905/jfpj.v3i2.11051

Abstract

Tujuan penelitian ini adalah untuk menganalisis profil organoleptik, kandungan gizi, dan total kalori Naget Ikan Gabus (NIG) dengan fortifikasi Kecambah Kacang Hijau (KKH). Penelitian ini merupakan penelitian faktor tunggal dalam rancangan acak lengkap, dengan enam perlakuan dan setiap perlakuan diulang sebanyak 3 kali. KKH yang ditambahkan adalah 0, 5, 10, 15, 20, dan 25% dari jumlah daging ikan gabus. Data kandungan gizi dan total kalori dianalisis menggunakan Analysis of Variance dilanjutkan dengan uji beda nyata terkecil pada taraf α 5%, sedangkan data organoleptik dianalisis secara deskriptif berdasarkan frekuensi terbanyak (modus). Hasil penelitian menunjukkan bahwa fortifikasi KKH sampai dengan 25% memberikan pengaruh nyata terhadap karakteristik organoleptik dan gizi NIG (p0,05). NIG dengan penambahan KKH sampai dengan 10% mendapat respons disukai untuk atribut aroma, rasa, dan tekstur, sedangkan warna disukai hingga penambahan kecambah kacang hijau sebanyak 25%. NIG yang dihasilkan berwarna kuning keemasan hingga kuning kecokelatan. Semakin tinggi penambahan konsentrasi KKH menyebabkan respons sensoris mutu hedonik untuk aroma dan rasa ikan gabus menurun, sebaliknya respons sensoris mutu hedonik untuk aroma dan rasa KKH menjadi meningkat. Semakin besar penambahan KKH juga meningkatkan kelembutan tekstur NIG, serta meningkatkan kadar Abu; Air, Lemak; dan Protein, tetapi menurunkan kadar Karbohidrat dan total kalori NIG.
Optimization Method for Bioethanol Production from Giant Cassava (Manihot esculenta var. Gajah) Originated from East Kalimantan Krishna Purnawan Candra; Kasma Kasma; Ismail Ismail; Marwati Marwati; Wiwit Murdianto; Yuliani Yuliani
Indonesian Journal of Chemistry Vol 19, No 1 (2019)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (179.596 KB) | DOI: 10.22146/ijc.31141

Abstract

Here is the first report of bioethanol production from giant cassava, a variety of cassava originated from East Kalimantan. Hydrolysis on freshly grated cassava with two different acids was studied separately. The experiment was conducted as a single factor experiment in Completely Randomized Design (CRD) with five treatments (0.0–1.0 M of acid solution), each replicated three times. Reducing sugars, unhydrolyzed substance (fibers), and hydrolysate clarity was determined. The experiment was continued by studying fermentation condition using factorial experiment (2 x 4) in CRD. The first factor was starter concentration (Saccharomyces cerevisiae, 5 and 10%) and the second factor was fermentation time (2–11 days). Biomass and alcohol content in fermentate were determined. The data were analyzed by ANOVA, excluding alcohol content that analyzed by the non-parametric statistic. Optimization using regression analysis showed that hydrolysis by HCl was more effective than H2SO4. Hydrolysis solution of 0.58 M HCl gave an optimum reducing sugar in hydrolysate (5.6%), which equivalent to a yield of 28.18%. Starter concentration affected significantly on biomass and alcohol content (p < 0.001) of fermentate, while fermentation time affected significantly only on alcohol content (p < 0.001). Optimum condition of cassava hydrolysate fermentation (100 mL) was using 5% yeast for 8 days, which gave a yield of 14.17% bioethanol.
Rendemen dan kualitas minyak nilam (Pogostemon cablin Benth.) dari Kalimantan Timur serta analisis tekno-ekonominya Nur Amaliah; Krishna Purnawan Candra; Viky Bayu Parytha; Arif Kurniawan; Tazri Amrullah; Bernatal Saragih; Hudaida Syahrumsyah; Yuliani Yuliani
AGROINTEK Vol 16, No 2 (2022)
Publisher : Agroindustrial Technology, University of Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/agrointek.v16i2.12421

Abstract

This study aimed to determine the patchouli oil (PO) business in the province of East Kalimantan based on data on the yield and quality of PO produced from several PO production centers in East Kalimantan. Bangun Rejo Village in Kutai Kartanegara Regency, Sepaku I Village and Argo Mulyo Village in Penajam Paser Utara Regency were selected as samples in this study. PO extraction from plant samples from each village was carried out using a laboratory-scale wet distillation method (3 kg leaves, branches) per batch. Each batch was carried out with six replications using different samples. The sample of PO produced by farmers was used as a control. The results showed that the yield of PO from the three villages reached 1.25-1.76%, while the quality of the oil showed an acid number of 2.407-4.747%, ester number 11.843-16.768%, PO content 33.670-43.693%, iron content 1.096-8.538 mg/kg, density 0.614-0.822 g/cm3, refractive index 1.509 nD20 and light-yellow to yellow. PO produced by farmers has an acid number of 6.311-11.920%, ester number 16.269-19.822%, ethanol solubility 1:5-1:9, patchouli alcohol content 31.96-40.89%, iron content 0.460-1.105 mg/kg, density 0.946-1,509 g/cm3, refractive index 1.508-1.510 nD20 and yellow to dark yellow in colour. Techno-economic analysis (using laboratory-scale extraction yield data) shows that PO refining business in the two villages is feasible to be carried out with B/C values of 3.62 and 6.37 for Sepaku I Village and Bangun Rejo Village. Still, it is not feasible for Argo Mulyo (B/C value of 0.842)
Pengaruh perbandingan tepung terigu dan tepung jewawut (Setaria italica L.) terhadap sifat organoleptik, sifat fisik dan karotenoid donat labu kuning Epi Susanti; Bernatal Saragih; Yuliani Yuliani
Journal of Tropical AgriFood Volume 3, Nomor 2, Tahun 2021
Publisher : Jurusan Teknologi Hasil Pertanian Universitas Mulawarman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35941/jtaf.3.2.2021.5949.79-85

Abstract

Donat adalah salah satu jenis makanan yang memiliki lubang ditengah atau tanpa lubang dengan bahan yang terbuat dari adonan tepung terigu, gula, telur dan mentega atau margarin. Jewawut (Setaria italica L.) adalah sumber karbohidrat alternatif yang memiliki kandungan protein yang cukup tinggi. Penelitian ini bertujuan untuk mempelajari pengaruh formula tepung terigu dan tepung jewawut terhadap sifat sensoris, sifat fisik dan kadar karotenoid donat labu kuning. Penelitian menggunakan Rancangan Acak Lengkap dengan 4 perlakuan 4 kali ulangan. Data yang diperoleh dianalisis dengan ANOVA dilanjutkan dengan uji BNT. Data sensoris dikonversikan menjadi data interval menggunakan metode MSI (Method of Successive Interval) sebelum dianalisis dengan ANOVA. Hasil penelitian menunjukkan bahwa formula tepung terigu dan tepung jewawut berpengaruh nyata terhadap sifat sensoris hedomik dan mutu hedonik, intensitas warna, dan total karotenoid donat, tetapi berpengaruh tidak nyata terhadap daya kembang donat yang dihasilkan. Formulasi tepung terigu dan tepung jewawut 50%:50% menghasilkan donat dengan sifat sensoris suka untuk semua atribut, menunjukkan daya kembang 71,62%, mempunyai intensitas warna 0,21 (Abs pada 510 nm), dan kadar karotenoid 1,28 ppm. Sifat sensoris mutu hedonik donat adalah berwarna kuning, agak beraroma jewawut, agak berasa jewawut, bertekstur agak lemah.