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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 7 Documents
 1 
Search results for , issue "Vol 15 No 02 (2021)" : 7 Documents clear
UJI UNJUK KERJA MESIN PEMBELAH DAN PEMERAS JERUK MANIS (Citrus x sinensis) Anang Supriadi Saleh; Yossi Wibisono; Zaenal Abidin
JURNAL AGROTEKNOLOGI Vol 15 No 02 (2021)
Publisher : Faculty of Agricultural Technology, University of Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/j-agt.v15i02.22115

Abstract

The process of sweet oranges (Citrus x sinensis) into orange fruit juice gives benefits for the community because at the harvest time, sweet orange fruit prices fell and people can sell as fresh orange juice or as raw material for processing drinks. People still struggle with cheap squeezing machines. This research was a continuation of previous research with the title design of an orange juice extract machine for small-scale industries. This machine was made at a low price, made from local materials, easy to maintain, and can be applied for sweet orange farmers and small-scale industries. The aim of this research was to perform performance tests for sweet orange stripping and squeezing machine. The research method in this machine testing used a combination of big size Semboro sweet orange (Ø 65 mm), small size Semboro orange (Ø 49 mm), peeled orange, and orange not peeled. Each combination of treatment uses 16 kg of sweet orange fruit and was repeated three times, then the extraction yield and extortion work capacity were calculated. The results of testing the extracts of sweet orange fruit extracts showed that the testing of big size sweet oranges (Ø 65 mm) without peeling resulted in fruit juice yield of 33.8%, with a working capacity of 167.3 kg/hour. Keywords: performance tests, small scale industry, sweet orange, work capacity
RESPON PEMBERIAN GIBERELIN TERHADAP KANDUNGAN FENOLIK DAN AKTIVITAS ANTIOKSIDAN PADA BUAH TANAMAN CIPLUKAN (Physalis angulata L.) Fitra Dea Wafa; Mohammad Ubaidillah; Tri Agus Siswoyo
JURNAL AGROTEKNOLOGI Vol 15 No 02 (2021)
Publisher : Faculty of Agricultural Technology, University of Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/j-agt.v15i02.25391

Abstract

Ciplukan (Physalis angulata L.) is one of the plants from the class of herbal plants that is good to be developed because people are starting to choose herbal treatment. The content of ciplukan fruit is phenolic and flavonoid. Thus, technology for enlargement and increasing fruit content with the giberellin (GA3) hormone is needed. GA3 functions to stimulate the formation, development of fruit and increase the biosynthesis of secondary metabolites. This study aimed to determine the influence of the GA3 hormone on the phenolic content and antioxidant activity in ciplukan fruit. The experimental design used RAL 5 treatments: GA3 concentrations of 0 ppm (P0), 15 ppm (P1), 20 ppm (P2), 25 ppm (P3), and 30 ppm (P4). The parameters studied were the number of fruit, fruit size, fresh weight of fruit, total phenolic, total flavonoid, and antioxidant activity (DPPH method) in ciplukan fruit. The results showed that the concentration of 30 ppm (P4) of GA3 was showed the highest values on the number of fruits (33±3.53 g), fruit length (14.23±0.35 mm), width (12.87±0.39 mm), and fresh fruit weight (38.6±3.97 g) without calyx. The concentration of 30 ppm (P4) also affected the phenolic content (2.52±0.23 mgGAE/g), flavonoids (2.43±0.18 mgQE/g), and IC50 value of antioxidant activity (60.59 g/mL). Keywords: antioxidant activity, ciplukan, flavonoid, giberellin, phenolic
TINGKAT KESUKAAN DAN NILAI GIZI COOKIES DENGAN PENAMBAHAN TEPUNG DAUN KATUK DAN TEPUNG DAUN KELOR UNTUK IBU MENYUSUI Thobagus Muhammad Nu'man; Asrul Bahar
JURNAL AGROTEKNOLOGI Vol 15 No 02 (2021)
Publisher : Faculty of Agricultural Technology, University of Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/j-agt.v15i02.24960

Abstract

Katuk leaves [Sauropus androgynus (L.) Merr] and moringa leaves (Moringa oleifera Lam.) are plants that can be used as galactagogues. Galactagogues compounds in both can stimulate the hormones prolactin and oxytocin, thereby increasing milk production. Katuk leaves and moringa leaves have a natural taste that is not favoured so that processing and formulation of other ingredients are needed to make the two ingredients more preferable. With an average growth from 2016-2020 of 4.250%, cookies can be a medium to help meet human needs. This study purposed to determine the level of preference and nutritional value of cookies with the addition of katuk leaves and moringa leaves as a snack for nursing mothers. This study used a factorial research design with 2 factors, namely 3 levels of katuk leaf flour (5 g, 10 g, 15 g) and 2 levels of moringa leaf flour (5 g, 10 g). The hedonic test data were processed using the Friedman test and further test with the Wilcoxon signed-rank test. Calculations used to test the effectiveness to determine the selected formula showed that the F4 treatment (5 g katuk leaf flour: 10 g moringa leaf flour) had the highest effectiveness value of 0.95. The results of the chemical test on the F4 treatment had a water content of 1.02%, carbohydrates 76.88%, protein 12.05%, fat 7.85%, and energy contributions of 423.50 kcal per 100 g, and 105.87 kcal per dose serving (30 g). Keywords: breastfeeding mothers, cookies, katuk leaves, moringa leaves
PERUBAHAN KIMIA DAN MIKROBIOLOGI TEMPE BUSUK SELAMA FERMENTASI Vivi Nuraini; Irvia Resti Puyanda; Widasari Atrilania Sri Kunciati; Laurensia Atha Margareta
JURNAL AGROTEKNOLOGI Vol 15 No 02 (2021)
Publisher : Faculty of Agricultural Technology, University of Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/j-agt.v15i02.25729

Abstract

Tempeh is a very popular food because it is delicious and has good nutritional value. Overfermented tempeh is used as a seasoning in dishes such as lodeh and sambal tumpang. Thus, it is necessary to know the length of time tempeh fermentation is safe for consumption. The purpose of this study was to determine the chemical and microbiological quality of over-fermented tempeh and the effect of the packaging used. This study used a 2-factor factorial completely randomized design. The first factor is the storage time of tempeh (1 day, 3 days, 5 days, 7 days, and 9 days), and the second factor is the type of tempeh packaging (plastic, teak leaves, and banana leaves). The results of the water content test showed that the tempeh began to decay in storage for 5 days. Teak leaf packaging has the lowest water content of the others. Tempeh, which has the highest protein content of 0.60 g/L, is tempeh packaged in teak leaves that has been stored for 3 days. Tempeh stored for 9 days has high water content, exceeding the maximum SNI standard (SNI 3144:2015) by about 65%. Soluble protein levels increased and then decreased during the decomposition process. Free fatty acids continued to experience a decrease in storage for 9 days, which indicated that the process of decay had occurred. The highest free fatty acids were found after 3 days of storage in plastic packaging, which reached 6.2 mg NaOH/g, while tempeh packaged with teak on the third day still showed a lower value of 3.83 mg NaOH/g. The total bacteria test showed an increasing trend from the first day to the ninth day of storage. Tempeh was still suitable for consumption up to five days after being stored. After 5 days of storage, tempeh has decreased in quality. Teak leaves have been proven to be able to maintain the quality of tempeh better than plastic packaging or banana leaf packaging. Keywords: banana leaf, FFA (free fatty acid), teak leaf, tempeh
KARAKTERISTIK ORGANOLEPTIK, KIMIA, DAN TOTAL MIKROBA PINDANG IKAN TONGKOL TERAWETKAN GARAM DAN SERBUK BIJI PICUNG (Pangium edule Reinw) SELAMA PENYIMPANAN Yuvita Lira Vesti Arista; Yuli Witono; Mukhammad Fauzi
JURNAL AGROTEKNOLOGI Vol 15 No 02 (2021)
Publisher : Faculty of Agricultural Technology, University of Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/j-agt.v15i02.8761

Abstract

Picung (Pangium edule Reinw) seeds had been used as fresh fish preservatives for a long time, there had not been reported about the boiled salted tuna using picung seeds. The aim of this research was to determine the chemical organoleptic properties and total microbe of boiled salted tuna with the addition of salt and picung seed powder during storage. This research consisted of 2 factors, those were variations of the salt concentration which consisted of G1 (the use of 10% of salt), G2 (the use of 15% of salt), and G3 (the use of 20% of salt) and the variations of picung seeds powder which consisted of P1 by adding 1% of picung seeds powder (150-200 g of the fish weight), P2 by adding 3%, and P3 by adding 5%. It was done three times. The organoleptic, chemical, and total plate count (TPC) of boiled salted tuna observation was done during 0, 3, 6, and 9 days of storage. The organoleptic test of boiled salted tuna by using 20 persons of the untrained panelists (permanent respondents). The organoleptic observation parameters consisted of appearance, aroma, taste, and mucous. The result of boiled salted tuna which used 15% (G15) and 20% (G20) of salt and added 3% (P3) and 5% (P5) of picung seeds powder could be still accepted by the panelist until in day-9. In addition, it was also able to maintain chemical properties up to day-6 of storage including parameters of free fatty acid and TVBN (total volatile basic nitrogen) content. The use of salt and powdered picung seeds with a ratio of 15%:5% (G15P5) and 20%:5% (G20P5) was able to maintain the amount of TPC until the day-6 of storage not to exceed the specified threshold. Keywords: boiled salted tuna, organoleptic, TPC, TVBN
RANCANGAN SISTEM PENGENDALI SUHU DAN KELEMBABAN BERBASIS MIKROKONTROLER PADA RUANG PERTUMBUHAN FODDER (FODDER GROWTH CHAMBER) Bambang Marhaenanto
JURNAL AGROTEKNOLOGI Vol 15 No 02 (2021)
Publisher : Faculty of Agricultural Technology, University of Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/j-agt.v15i02.30959

Abstract

The availability of green feedstock for sheep is difficult to find during a dry season. To resolve this problem, seed seedlings such as sorghum and corn are known as green fodder is needed. In order to maintain seedling productivity, fodder planting is carried out in a chamber to control temperature, humidity, and light regulators. The objective of this study was to design a fodder growth chamber for providing sheep feed. The chamber is 4×3×3 m (l×w×h) which is equipped with a tray rack, evaporative cooler, humidifier, exhaust fan, and LED strip. A controller unit was employed to maintain temperature and humidity. The controller is based on a microcontroller that is programmed using BASCOM AVR. The controller unit was tested to maintain the temperature within the range of 35-45oC and humidity within 55-75%. It resulted a graph that indicated that temperature has fluctuated between desired range as well as humidity. Corn seeds were grown on the tray (700 g per tray) for 10 days and produced 1500 g per tray. Keywords: animal feed, automatic control, fodder microcontroller
ENKAPSULASI SERBUK SIMPLISIA DAN EKSTRAK KULIT JERUK SERTA APLIKASINYA PADA VEGETABLES JAM Gloria Angelina; Elisabeth Tyastiningrum; Ester Mastiur Sitorus; Nur Aini
JURNAL AGROTEKNOLOGI Vol 15 No 02 (2021)
Publisher : Faculty of Agricultural Technology, University of Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/j-agt.v15i02.27358

Abstract

Mandarin peel contains essential oil with limonene as the dominant compound that can be used as a flavor additive and source of antioxidants in food products. Vegetables jam is an innovation of vegetable processing that requires flavor additive to increase its acceptability and quality. The aim of this study was to determine formulation, sensory, and chemical characteristics of vegetables jam with addition of encapsulated mandarin peel simplicia powder and extract. The factors that used in this study are type of active substance [simplicia powder (A1) and extract (A2)] and proportion of maltodextrin and arabic gum [1:3 (E1), 2:3 (E2), 3:3 (E3), 3:2 (E4) and 3:1 (E5)]. Based on the results of the study, vegetables jam with addition of encapsulated essential oil extract with proportion of maltodextrin and arabic gum 2:3 (A2E2) was the best treatment, where the sensory evaluation consisted of color has a score of 3.67 (orange-green to greenish orange), aroma 3.53 (slightly typical of jam to typical of jam), taste 3.00 (slightly sweet), smearing power of 4.53 (average to very average), total liking of 3.4 (slightly like to like), the water content of 77.32%, the antioxidant activity of 7.75%, beta carotene content of 15017.99 μg/100 g, and total dietary fiber content of 0.62%. Keywords: encapsulation, extract, mandarin peel, simplicia powder, vegetables jam

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