5 research outputs found
ANALISIS PENERIMAAN KONSUMEN UNTUK PRODUK EDIBLE FILM BERBAHAN TEPUNG DAMI NANGKA SEBAGAI BAHAN KEMASAN SERBUK SEREAL
No full textPackaging of food is very important to protect food from damage. Nearly
all food packaging materials was made from plastic which is not environmentally
friendly. Concern for the environment is causing the expansion of research on
edible packaging. One type of edible packaging is edible film . Edible film is one
of the alternative food packaging which is environmentally friendly and can be
eaten as using renewable materials. One of the components of edible films is
polysacharide (carbohidrate). Straw is the part of jackfruit that unutilized, the
jackfruit straw flour consists of 71,53% carbohydrate. The aim of this research
was to identify the consumer acceptance of edible film based on the jackfruit
straw flour.
Consumer acceptance analysis was done with brainstorming and hedonic
test (organoleptic). Product attributes that was tested are the shape, color,
texture, strength, flavor, aroma, and environmentally friendly with standard
products plastic packaging in cereal drinks. A hedonic analysis of experimental
data was processing using spider diagram and t test. If the results of the analysis
of variance H0 (there is no significant difference between the quality attributes of
edible film packaging and plastic packaging) was received that mean edible film
products can be accepted by consumers, where if H0 (there is no significant
difference between the quality attributes of edible film packaging and plastic
packaging) was refused that means edible film product can not be accepted by
consumers.
The results of this study of consumer acceptance of the edible film based
onthe jackfruit straw flour as a material packaging cereal powder was not
accepted as a whole. Attributes derived from edible film packaging material just
flavor, texture, and environmentally friendly. Cereal packaging from plastic
packaging was more acceptable than edible film, t test results showed that the
average value of the two differ significantly. This indicates that the jackfruit straw
flour edible film was not yet received by consumer
Yield Potential Of Indonesian Jatropha New Variety (Jet-1 Agribun) Under Rainfed Condition
Full text linkJet-1 Agribun is one of the Indonesian Jatropha new varieties suitable for rainfed areas with a high yield of dry seed and oil content. The field trial was conducted at Asembagus Experimental Station in Situbondo, East Java from February to December 2019 and aimed to observe the potential of Jatropha Jet-1 Agribun under rainfed conditions. Observation on seed yield and growth components of Jatropha plantation was also made in two and three years old Jet-1 Agribun. Results of the observation showed that Jet-1 Agribun in the first year produced seed 471.8 kg/ha. A two-year-old plant produced a dry seed of 3,958.7 kg/ha. Three-year-old plants after pruning produced dry seed 910.95 kg/ha and 916.04 kg/ha at 1 m x 1 m and 2 m x 2 m, respectively, indicating that wider spacing is more allowable for cropping with food crops until the canopy closes. Development of Jatropha should be integrated with food crops or other crops through intercropping systems, by using the land around the plants until the canopy closes. 
Chitosan coating and packaging to maintain the physical quality of beet tubers
Full text linkBeet tubers are perishable horticultural commodities, cannot be stored for long, and are commonly consumed in fresh conditions. Postharvest handling of beet tubers needs to be carried out to maintain their freshness Chitosan and other packaging used in postharvest handling of fresh beet tubers have not yet been reported. This study aims to determine the effect of chitosan coating and types of packaging on beet tubers on the physical quality of beet tubers. The study was a randomly designed group with two factors; the first factor was chitosan concentration, and the second factor was the kinds of packaging. Chitosan concentration consists of 5 levels, namely 0, 0.5%, 1%, 1.5%, and 2%, and the type of packaging includes no packaging (Without), plastic packaging with holes (Perforated), ordinary plastic packaging (Ordinary) and plastic vacuumed (Vacuum). The beet tubers were soaked in chitosan solution of 0, 0.5%, 1%, 1.5%, and 2% for 1 minute, air-dried, then were packaged with no packaging, plastic packaging with holes, ordinary plastic packaging, and plastic vacuumed. . The physical quality parameters observed were moisture content, weight loss respiration rate,electrolyte leakage, total dissolved solid (TDS), ascorbic acid, betacyanin, betaxanthins, tuber firmness, damage percentage, and visual quality rating (VQR). Data were analyzed using Anova variant analysis and then continued with Tuckey tests with a 95% confidence level using R studio software. The results showed that chitosan coating did not affect the physical quality of beet tubers, while packaging affected the quality of beet tubers. The most suitable packaging to maintain the physical quality of beet tubers is plastic packaging with holes (perforated)
Karakteristik Biodiesel Kemiri Sunan dengan Katalis NaOH dan KOH
Full text linkMinyak non pangan seperti minyak biji kemiri sunan berpeluang digunakan sebagai bahan baku biodiesel. Masalah yang muncul dalam pembuatan biodiesel adalah reaksi transesterifikasi tanpa katalis berlangsung sangat lambat sehingga dikhawatirkan reaksinya tidak stabil, serta kebutuhan input energi yang sangat tinggi menjadikan tidak layak teknis. Oleh karena itu, untuk mempercepat reaksi transesterifikasi diperlukan katalis. Penggunaan KOH 1% dan NaOH 0,75% sebagai katalis pada proses transesterifikasi dapat mempercepat reaksi. Penelitian ini bertujuan untuk mengetahui karakteristik biodiesel dari minyak biji kemiri sunan, campuran dari beberapa aksesi, yang dihasilkan dengan katalis NaOH 0,75% dan KOH 1 % dibandingkan dengan SNI 04-7182-2015 tentang Biodiesel. Metode pembuatan biodiesel yang digunakan meliputi tahapan degumming, transesterifikasi, separasi dan pencucian. Penelitian dilakukan di Laboratorium Kimia Tanaman Balai Penelitian Tanaman Pemanis dan Serat, Malang pada bulan Agustus-Desember 2019. Biodiesel kemiri sunan menggunakan katalis NaOH 0,75% memiliki nilai kadar air 0,03%, densitas 0,89 (g/cm3 ), angka asam 0,38 mg/KOH/g, angka iod 42,67, viskositas kinematik pada suhu 40 °C 5,45 °C, dan titik nyala 173 °C. Biodiesel dengan penambahan katalis NaOH 0,75% menghasilkan mutu lebih baik dari penambahan katalis KOH 1%. Biodiesel dengan katalis NaOH 0,75% sudah memenuhi SNI 04-7182-2015 tentang Biodiesel pada parameter mutu yang diukur (kadar air, densitas, angka asam, angka iod, viskositas kinematik, dan titik nyala). Parameter lain dalam SNI 04-7182-2015 yang belum dilaporkan dalam penelitian ini perlu dilakukan penelitian lebih lanjut untuk biodiesel minyak kemiri sunan menggunakan katalis NaOH 0,75%.Characteristics of Toxic-Candlenut Biodiesel with NaOH and KOH CatalystsNon-food oils, such as toxic candlenut seed oil, have the opportunity to be used as raw material for biodiesel. The problem that arises in biodiesel process is the slowly transesterification reaction, when without a catalyst will cause unstable reaction, need very high energy inputs, so that makes it technically unfeasible. Therefore, a catalyst is needed to accelerate the transesterification reaction. The use of 1% KOH and 0.75% NaOH in the transesterification process can accelerate the reaction. This study was aimed to determine the characteristics of biodiesel from toxic candlenut oil, a mixture of several accessions of the toxic candlenuts, which was produced with 1% KOH and 0.75% NaOH catalyst. The results were then compared to the characteristics of those determined in SNI 04-7182-2015 of Biodiesel. The method in producing biodiesel included the stages of degumming, transesterification, separation and washing. The experiment was conducted in Phytochemical Laboratory of IRSFCRI in August to December 2019. Toxic candlenut biodiesel using 0.75% NaOH catalyst has a value of moisture content (0.03%), density (0.89 g/cm3), acid number (0.38 mg/KOH/g), iodine number (42.67), kinematic viscosity at temperature 40°C (5.45°C), and flash point (173°C). Biodiesel quality with 0.75% NaOH is better than that of 1% KOH catalyst. Biodiesel with 0.75% NaOH catalyst has achieved the requirement of the SNI 04-7182-2015 on Biodiesel on almost all parameters (i.e., water content, density, acid number, iodine number, kinematic viscosity, and flash point). Other parameters in SNI 04-7182-2015 that have not been reported in this study need further research on biodiesel of toxic candlenut oil using 0.75% NaOH catalyst. Toxic candlenut biodiesel is expected to be used for biofuel
ANALISIS MUTU GULA TANJUNG DARI TIGA VARIETAS TEBU / Analysis of Tanjung Sugar Quality of Three Sugarcane Varieties
Full text linkTanjung sugar usually called “semut” sugar, is brown sugarcane in the form of fine powder with water content lower than block sugar. Tanjung sugar can be used to replace white sugar. The process of making tanjung sugar followed a standard method. Analysis of tanjung sugar quality from different sugarcane varieties has never been reported. This study aimed to analyze the quality of tanjung sugar produced from sugarcane varieties PS 864, PS 862, and BL. This research was carried out in the Sugar Production Unit at the Muktiharjo Experimental Station, Pati from May to October 2018. The process of making tanjung sugar from the three sugarcane varieties included squeezing the juice with a pressing machine with a capacity of 0.5 tons/day (0.5 TCD), cooking the juice in a pan on the stove at the temperature of 90-1100C for 3-4 hours until the juice has thickened. Then cooling the thickened juice in a cold pan for 15-30 minutes, and lastly stirring it until the brown sugar became granules. The sugar quality-analyzed were the color, content, ash, sugar reduction, and sucrose content. Data obtained were analyzed using an independent t-test. The results showed that tanjung sugar made from sugarcane PS 862 variety was the best quality compared to those of PS 864 and BL varieties. Tanjung sugar from varieties PS 862 had a light-brown color with a color index of 42.500, the water content of 3.90%, sucrose 87.10%, reducing sugar content of 4.40%, and ash content of 1.80%.Keywords: Brown sugar, sugarcane juice, sucrose, reducing sugar. AbstrakGula tanjung adalah gula merah tebu dalam bentuk serbuk halus dengan kadar air lebih rendah dari gula cetak, dan sering disebut gula semut. Gula tanjung ini dapat digunakan sebagai pengganti pemakaian gula pasir. Proses pembuatan gula tanjung mengikuti metode standar. Analisis mutu gula tanjung dari varietas tebu di daerah pengembangan belum pernah dilaporkan. Penelitian ini bertujuan untuk menganalisis mutu gula tanjung yang dihasilkan dari tebu varietas PS 864, PS 862 dan BL. Penelitian ini dilaksanakan di Unit Pengolahan Gula Merah Tebu di Kebun Percobaan (KP) Muktiharjo, Pati pada Mei-Oktober 2018. Proses pembuatan gula tanjung dari ketiga varietas tebu tersebut meliputi pemerasan nira dengan mesin pemerah berkapasitas 0,5 ton/hari (0,5 TCD), dimasak dalam wajan di atas tungku dengan suhu bahan 90-110oC selama 3-4 jam sampai nira mengental. Pendinginan dalam wajan dingin dilakukan sampai nira lebih mengental (15-30 menit) dan pengadukan dilakukan sampai gula merah tebu menjadi butiran gula tanjung. Mutu gula tanjung yang dianalisis yaitu warna dengan metode ICUMSA, kadar air dengan metode oven, kadar abu dengan tanur, kadar gula pereduksi dan sukrosa dengan metode Luff Schoorl. Data yang diperoleh dianalisis menggunakan independen t tes. Gula tanjung yang dibuat dari varietas tebu PS 862 mempunyai mutu terbaik dibandingkan varietas PS 864 dan BL. Gula tanjung dari tebu varietas PS 862 mempunyai warna coklat muda-tua dengan indeks warna 42.500, kadar air 3.90%, sukrosa 87.10%, kadar gula reduksi 4.40%, dan kadar abu 1.80%.Kata kunci: Gula merah tebu, mutu nira, sukrosa, gula reduksi
