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INDONESIA
Jurnal AGROTEKNOLOGI
Published by Universitas Jember
ISSN : 19781555     EISSN : 25024906     DOI : -
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
Jurnal Agroteknologi terbit 2 (dua) nomor per volume, dan mempublikasikan hasil penelitian dalam bidang ilmu dan teknologi pertanian yang mencakup teknologi hasil pertanian, enjiniring pertanian, dan agroindustri. Selain itu, dimungkinkan membahas berbagai ulasan ilmiah, resensi buku, komunikasi singkat, dan paket industri yang terkait dengan agroteknologi.
Arjuna Subject : -
Articles 262 Documents
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PENDUGAAN UMUR SIMPAN MAKANAN TRADISIONAL BERBAHAN DASAR BERAS DENGAN METODE ACCELERATED SHELF-LIFE TESTING (ASLT) MELALUI PENDEKATAN ARRHENIUS DAN KADAR AIR KRITIS Vivi Nuraini; Yannie Asrie Widanti
JURNAL AGROTEKNOLOGI Vol 14 No 02 (2020)
Publisher : Faculty of Agricultural Technology, University of Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/j-agt.v14i02.20337

Abstract

The expired date is important information that consumers should know. However, many traditional foods have not written an expiration due date. The purpose of this study was to estimate the shelf life of two (2) types of traditional rice-based foods intip and kembang goyang. Estimation of shelf life was carried out using the Accelerated Shelf-life Testing (ASLT) method using the Arrhenius approach and the critical moisture content approach. The calculation of shelf life in the Arrhenius approach to kembang goyang has been obtained respectively 0.45 months, 0.50 months, and 0.47 months at respective temperatures (25oC, 35oC and 45oC). The results of shelf life kembang goyang through the water content approach obtained 0.43 months at 75% RH. The results of the arrhenius approach to intip showed that shelf life of 0.37 months, 0.45 months, and 0.53 months at each temperature (25oC, 35oC, and 45oC). The critical water content approach for intip has obtained a shelf life of 0.58 months (RH 75%). Intip has a slightly larger shelf life when analyzed using the critical moisture content method. Keywords: ASLT, intip, kembang goyang, shelf life
AKTIVITAS LIPASE DAN METABOLISME LIPID SELAMA MASA PERKECAMBAHAN WIJEN (Sesamum indicum. L) Tri Agus Siswoyo; Norry Eka Palupi
JURNAL AGROTEKNOLOGI Vol 1 No 02 (2007)
Publisher : Faculty of Agricultural Technology, University of Jember

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Abstract

Experiments were conducted to determine the relationship between lipase activity and the metabolism of lipids during germination of sesame (Sesamum indicum. L) seed. During the course of germination, concentration of the non-polar lipid fractions and lipase activity increased. The glycolipids and phospholipid fractions were relative stable during early germination, but there were marked changes phospholipid fractions after 5 days germination. In a comparison among lipid fractions Non-polar lipids (NL), Glycolipids (GL), and Phospholipids (PL), there were no significant regressions between the quantitative changes in lipid fractions and lipase activities. It was concluded that the degradation in NL and increase in PL and GL observed during sesame germination were not controlled by the level of lipase activity. Rather, it was suggested that sesame may have another lipase present in the cells where the oil bodies are located that hydrolyzes lipids from the oil bodies during germination. Keywords: lipase, glycolipids, phospholipid, lipase, sesame seed
STRATEGI PEMASARAN DAN PENINGKATAN KUALITAS KERIPIK SUKUN Noer Novijanto; Eka Ruriani; Fahrudin TK
JURNAL AGROTEKNOLOGI Vol 5 No 01 (2011)
Publisher : Faculty of Agricultural Technology, University of Jember

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Abstract

The marketing of bread fruit chips in UD. Jamila Jamur Sukses was still not good, therefore the company has to develop its strategy by improving the quality of bread fruit chips to increase the marketing sales. This research was intended to analyse internal and external factors affecting UD. Jamila Jamur Sukses. The method used was SWOT analysis followed by FMEA analysis to know the fsctors affecting quality. The internal factors involved strength and weakness, and the external factors involved opportunity and threats. Results showed that from the SWOT analysis it was known that the position of the company in cell IV. It means that the company is in the condition of stability . Subsequently, the FMEA analysis showed that the failure of quality involves harder,rancid, and packaging, off flavor were often happen. Keywords: marketing strategy, quality improvement, SWOT and FMEA analysis
KOMPOSISI SENYAWA FENOL DAN POTENSI ANTIOKSIDAN DARI KACANG-KACANGAN: REVIEW Nurud Diniyah; Sang-Han Lee
JURNAL AGROTEKNOLOGI Vol 14 No 01 (2020)
Publisher : Faculty of Agricultural Technology, University of Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/j-agt.v14i01.17965

Abstract

Legumes are good dietary source of bioactive phenolic compounds which play significant roles in many physiological as well as metabolic processes. Flavonoids, phenolic acids and condensed tannins are the main phenolic compounds that are provide in legume seeds. Majority of the phenolic compounds are serving in the legume seed coats. The majority of seed coat of legume seeds are phenolic acids and flavonoids (mainly catechins and procyanidins). Gallic and protocatechuic acids are common in kidney bean and mung bean. Almost 70% of total phenolic compounds in lentils and cranberry beans (seed coat) are catechins and procyanidins. The antioxidant activity of phenolic compounds is in lineal intercourse with their chemical structures such as number as well as position of the hydroxyl groups. Processing mostly conducts to the alleviation of phenolic compounds in legumes because of chemical rearrangements. Phenolic content also lessen due to leaching of water-soluble phenolic compounds into the cooking water. This review provides comprehensive information of phenolic compounds identified in grain legume seeds along with discussing their antioxidant. Keywords: antioxidant activity, legume seeds, phenolic compounds, processing
KARAKTERISTIK AMPLANG IKAN LELE DUMBO (Clarias gariepinus) HASIL VARIASI RASIO DAGING IKAN LELE DAN TAPIOKA Priyanto Priyanto; Yuli Wibowo; Jay Jayus
JURNAL AGROTEKNOLOGI Vol 14 No 02 (2020)
Publisher : Faculty of Agricultural Technology, University of Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/j-agt.v14i02.9743

Abstract

The demand for amplang crackers is now increasing. However, the price of its raw material, mackerel fish, is generally higher compare to other fishes, causing the higher cost of this type crackers production. Effort to explore other fish as an alternative raw material is required to overcome the problems. Catfish is one of the choices to be used as raw material since this fish is more available in a market in a lower price, but the protein properties of this fish is different to mackarel, which will be possible to affect the nature of the crackers obtained. To produce catfish amplang crackers to be similar to common amplang product, it is necessary to find out the right composition of catfish and tapioca flour used. Therefore, the purpose of this research was to characterize physico-chemically and organoleptically, the catfish amplang crackers made under different ratio of fish flesh and starch. The experiment was designed using completely randomized design. Physico-chemical data obtained were analyzed using ANOVA, while the organoleptic test data were examined using chi-square method. The effectiveness test was carried out to find the proper ratio of raw materials composition used. The results showed that the higher the ratio of the fish flesh and the starch composition, the lower the texture value of the crackers as an indication of the decrease of its crispness. Although the lightness of the crackers was lowered by the addition of more starch to the dough, its linear expansion and hygroscopicity were not affected. The results of organoleptic test showed that the panelist was prefer to a higher crispness of crackers. The most preferable cracker was the one with 1:2.25 ratio of catfish flesh and starch, showing the characteristic of 1.80% moisture, 2.08% ash, 5.75% protein, 23.55% fat, and 66,93% carbohydrate. Keywords: cracker, catfish, tapioca starch
ANALISIS EKONOMI DAN SIFAT FISIKOKIMIA DODOL RUMPUT LAUT Yuli Wibowo; Bambang Herry Purnomo; Andrew Setiawan Rusdianto
JURNAL AGROTEKNOLOGI Vol 1 No 02 (2007)
Publisher : Faculty of Agricultural Technology, University of Jember

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Abstract

Seaweed (Eucheuma cottonii) is sea commodities that processed become various food products. Based on this fact, it needs to be explored, especially product with high added value, practice, and was be like by people. Seaweed product that explored in this research is seaweed dodol. The research point is to determine the composition of seaweed dodol with high quality, which are to study the effect of coconut milk and sugar and then economic analysis. The result showed that addition of coconut milk was not give effect on moisture content, Aw, pH and hardness of seaweed dodol. Otherwise, the addition of sugar was significantly affected on Aw, pH and hardness of dodol. Sugar was not significantly effected by moisture. Dodol made by composition of coconut milk 30 % and high sugar (1:3) was a good dodol. The result of economic analysis shown that dodol industry have good prospect. Keywords: Economical analysis, Eucheuma cottoni , formulation, seaweed dodol
IDENTIFIKASI KINETIKA PERTUMBUHAN ALGA PADA MODEL MONOD Mochamad Bagus Hermanto; A.J.B. Boxtel; K.J. Keesman
JURNAL AGROTEKNOLOGI Vol 5 No 01 (2011)
Publisher : Faculty of Agricultural Technology, University of Jember

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Abstract

Algae are one of potential source for renewable energy. Algae growth depends on many inputs (i.e. light, temperature, and nutrition). Mathematical model can be developed to study the development of algae during cultivation. This research deals with the design of experimental method to study the kinetic of algae growth. Optimal input design was introduced to Monod models. Light intensity and dilution used as input. Two parameters i.e: maximum specifics-rate-growth (μmax) and saturation-constant at light intensity (KI) were estimated. Correlation coefficient between (μmax) and (KI) parameters was observed. The results showed that the Monod models perform better than conventional models. This design can minimize confidential interval. Keywords: algae growth, parameter estimation, optimal input design
KARAKTERISTIK FISIK DAN SENSORIS ES KRIM KACANG MERAH (Phaseolus vulgaris L.) DENGAN PENAMBAHAN TEPUNG UMBI GEMBILI (Dioscorea esculenta L.) SEBAGAI PENSTABIL Cicilia Nuryati; Anang Mohammad Legowo; Nurwantoro Nurwantoro
JURNAL AGROTEKNOLOGI Vol 14 No 02 (2020)
Publisher : Faculty of Agricultural Technology, University of Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/j-agt.v14i02.17615

Abstract

Gembili tubers are Dioscoreaceae plants which contain mucus which is water soluble polysaccharide (13.42% db), able to bind materials and form gels, and is glucomannan (Harijono et al., 2010; Prabowo et al., 2014). Gembili tubers can be used as a stabilizer, thickener, and also gelling agent in ice cream products because of this content. This research aims to determine the effect of added gembili tuber flour with different concentrations on overrun, melting speed, total solids, and hedonic quality of red bean ice cream. The material used is red bean porridge, fresh cow's milk, granulated sugar, whipped cream, egg yolks, water, and gembili tuber flour. The experimental design used was a Completely Randomized Design (CRD) with 5 treatments and 4 replications with a formulation of adding gembili tuber flour concentration of 0%, 2%, 4%, 6%, 8%. Analysis of the data used is the Analysis of Variants (ANOVA) at a significance level of 5%. The results showed that the addition of different concentrations of gembili tuber flour to peanut ice cream had a significant effect (P <0.05) on overrun, melting speed, and total solids, as well as texture, taste, and thickness characteristics but did not significantly affect the color, aroma, and favorite overalls. The best treatment of added gembili tuber flour as a stabilizer of red bean ice cream is 0.4%. Keywords: gembili tubers, hedonics, ice cream, kidney beans, overrun
KARAKTERISTIK KIMIA DAN MIKROBIOLOGI SEDIAAN OPAQUE SOAP DENGAN PENAMBAHAN EKSTRAK ETANOL TEMBAKAU Andi Eko Wiyono; Herlina Herlina; Andrew Setiawan Rusdianto; Mega Desy Safitri
JURNAL AGROTEKNOLOGI Vol 15 No 01 (2021)
Publisher : Faculty of Agricultural Technology, University of Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/j-agt.v15i01.17068

Abstract

Opaque soap is a solid soap product. It was made from a mixture of oil and the addition of alkaline compounds to form a saponification process. Solid soap preparations made with the addition of tobacco extract as an active ingredient that contains nicotine compounds, which include toxic alkaloids are weakly basic. In addition, tobacco extracts chosen to produce products that were beneficial to society. The purpose of this study was to provided wider use of tobacco and to know the characteristic of opaque soap preparations with the addition of tobacco extracts. The research method was a single completely randomized design (CRD) with descriptive analysis. In this study, the formulas of opaque soap were A0 (no addition of tobacco extract), A1 (1.2 g of tobacco extract), A2 (2.4 g of tobacco extract), and A3 (4.8 g of tobacco extract). The observed parameters were chemical and microbiological characteristics. All variations of opaque soaps had a pH of 9.51-9.77, water content of 13.15%-14.35%, free alkali 0.056-0.0584, antibacterial (E. coli inhibition zone proved by clear zone) about 8.60-21.50 mm; and nicotine levels 0-383.67 mg/100g. From the results due to chemical and microbiological characteristics, all of the opaque soap with additional tobacco extract was in accordance with the Indonesian National Standards (SNI 3532-2016) so that soap was safe for use by the public. Keywords: chemistry, microbiology, soap preparations, tobacco extract
KARAKTERISTIK FISIKOKIMIA SELAI KULIT BUAH NAGA (Hylocereus polyrhizus) DENGAN PENAMBAHAN VARIASI KONSENTRASI BUAH NANAS (Ananas comosus L.) Pratiwi Jati Palupi; Retno Prasetia; Muh. Doddy Pratama; Indah Sriwahyuni
JURNAL AGROTEKNOLOGI Vol 15 No 01 (2021)
Publisher : Faculty of Agricultural Technology, University of Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/j-agt.v15i01.20644

Abstract

Dragon fruit peels (Hylocereus polyrhizus) are generally only considered trash by the public because they are considered useless, even though dragon fruit peels still contain useful nutrients. Dragon fruit skin can be used as food, one of which is a jam. The addition of pineapple fruit variations to dragon fruit peel jam as a flavor enhancer and natural fragrance to reduce the use of sugar in jam and the aroma of pineapple fruit can mask the distinctive aroma of dragon fruit which is less desirable. The purpose of this study was to determine the appropriate concentration variations in the manufacture of dragon fruit peel jam with the addition of pineapple, which consumers liked. This study used a completely randomized design with six (6) treatments and two (2) replications. Dragon fruit peel jams analyzed by chemical tests included moisture content, sugar level, and pH, while organoleptic test included color, texture, taste, aroma, and a total of 30 untrained panelists. Observation data were processed using ANOVA (α = 5%) and further tested using the honest significant difference test (BNJ) (α = 5%). The results showed that the pineapple’s addition to dragon fruit peel jam had a very significant effect on the panelists' preference for aroma and taste, but not significantly different from the color, texture, and chemical characteristics of jam. The N6 treatment (dragon fruit peel 250 g: pineapple fruit 250 g) was the best jam, based on chemical characteristics (pH content of 3.52, moisture content of 18.65%, sugar level of 53.30%) and preferable in organoleptic characteristics (2.97 of color, 2.97 of texture, 2.97 of flavor, 3.00 of taste). Keywords: agricultural waste, dragon fruit peel, jam, pineapple

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