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INDONESIA
Agrointek
Published by Universitas Trunojoyo Madura
ISSN : 19078056     EISSN : 25275410     DOI : -
Core Subject : Science, Agriculture,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology
Agrointek is an open access journal published by Department of Agroindustrial Technology,Faculty of Agriculture, University of Trunojoyo Madura. Agrointek publishes original research or review papers on agroindustry subjects including Food Engineering, Management System, Supply Chain, Processing Technology, Quality Control and Assurance, Waste Management, Food and Nutrition Sciences from researchers, lecturers and practitioners. Agrointek is published twice a year in March and August. Agrointek does not charge any publication fee.
Arjuna Subject : -
Articles 26 Documents
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Search results for , issue "Vol 18, No 2 (2024)" : 26 Documents clear
Analisis Profil Sensori Teh Buah Aneka Rasa dengan Metode CATA (Check-All-That-Apply) Muhammad Fakih Kurniawan; Nindya Atika Indrastuti; Aviani Kurnianingrum
AGROINTEK Vol 18, No 2 (2024)
Publisher : Agroindustrial Technology, University of Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/agrointek.v18i2.17908

Abstract

Fruit tea is processed dried tea leaves mixed with dried fruit. One of the local brand fruit tea products circulating in the Indonesian market is Haveltea. The purpose of this study was to identify the sensory profiles of four fruit tea variants (peach flavored fruit tea, mango flavored fruit tea, lychee flavored fruit tea and bergamot orange flavored fruit tea) using CATA (check-all-that-apply). The methods consisted of two steps: determining sensory attributes of fruit tea using FDG (Forum Discussion Group) and sensory testing to 50 consumers. The analysis used in this CATA included Cochran’s Q-test, correspondence analysis, principal coordinate analysis (PCoA), and penalty analysis using the XLSTAT 2020 software. As a result, the four fruit teas have aroma characters (burned, roasted, tea, sweet and fresh or candied fruit), flavor (fermented, green, lime, lechy, peach and mango), taste (bitter and astringent), and aftertaste (astringent). According to consumer panelists, the ideal fruit tea product is fruit tea with the dominant attributes of fermented flavour, lechy flavor, peach flavor and mango flavour. Based on the results of PCoA and correspondence analysis, which was strengthened by counterplot preference mapping, the attributes of fermented flavour, peach flavor and lechy flavor could affect panelists preference for fruit tea samples and these attributes matched the attributes of the ideal product according to the panelists. Some sensory attributes are required that must be present and enhanced in products such as sweet aroma, lechy flavor and mango flavour. The most preferred fruit tea by consumers is lychee flavored fruit tea with a preference level of up to 71%
Strategi pengembangan agroindustri kopi robusta kelompok tani sumber kembang di Kabupaten Jember Ikhwan Samsul Hadi Sidiq; Bambang Herry Purnomo; Sony Suwasono; Djoko Soemarno
AGROINTEK Vol 18, No 2 (2024)
Publisher : Agroindustrial Technology, University of Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/agrointek.v18i2.10552

Abstract

Kelompok Tani Sumber Kembang (KTSK) is a community organization of farmer’s coffee around the Argopuro.   KTSK was formed to benefit the community. Still, there are several problems, namely the low quality of the coffee, relatively simple technology, familial institutions, low human resource skills, and limited capital. This research was conducted to create a coffee agroindustry development strategy in Jember. The research methods used the ISM and AHP methods. Interpretive Structural Modeling (ISM) produces critical sub-elements in the elements of objectives, constraints, actors, activities, and the needs for the development of the coffee agroindustry. AHP method is used to generate development strategy priorities. The results of this research are the key sub-elements, namely the development of an agropolitan area with a model of integration of the upstream and downstream industries. Farmers' institutional development needs to be improved to make a good synergy between coffee farmers, Puslit Koka and Perhutani. This provides recommendations for decision-makers in planning the development of the coffee agroindustry
Sintesis dan karakterisasi metil selulosa dari kulit biji kakao dengan response surface method Atia Fizriani; Woro Setiaboma; Djagal Wiseso Marseno; Supriyanto Supriyanto
AGROINTEK Vol 18, No 2 (2024)
Publisher : Agroindustrial Technology, University of Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/agrointek.v18i2.19669

Abstract

The cocoa shell, a by-product of the cacao industry, is a potent source of cellulose, which can be modified into its derivatives in the food industry. One of these derivatives is methylcellulose (MC) that is performed by methylation using dimethyl sulfate. The synthesis process of methylcellulose can affect its characteristics. Food-grade methylcellulose typically had a degree of substitution (DS) ranging from 1.45 to 2.00. This study aimed to determine the optimum conditions for synthesizing food-grade MC and to characterize its properties. The synthesis of MC involved three variables: the concentration of NaOH solution, dimethyl sulfate addition, and methylation temperature. The synthesis of MC was optimized using Response Surface Methodology (RSM) central composite design (CCD) based on its degree of substitution (DS). Several characteristics of the MC were analyzed, including its degree of substitution (DS), oil-holding capacity (OHC), water-holding capacity (WHC), lightness, and crystallinity.The results indicated that the optimal conditions for synthesizing MC were a NaOH concentration of 21.29% (w/v), dimethyl sulfate addition of 3.62 ml, and a temperature of 51.09 C for 180 minutes. The properties of the optimized MC were DS 1.93±0.04, OHC 2.53±0.05 g/g, WHC 3.04±0.10 g/g, lightness 84.32±0.67 g/g, solubility 11.94±1.04% (db), and crystallinity index 40.21%. These research findings provide valuable knowledge about the ideal conditions for synthesizing food-grade MC and offer insights into its properties, thus facilitating its potential applications in the food industry.
Isolat protein kacang tunggak termodifikasi melalui jenis dan konsentrasi bahan kimia Choirul Anam; Emmy Hamidah; Dian Eka Kusumawati; Istiqomah Istiqomah; Mariyatul Qibtiyah; Ana Amiroh
AGROINTEK Vol 18, No 2 (2024)
Publisher : Agroindustrial Technology, University of Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/agrointek.v18i2.16837

Abstract

Cowpea is a type of legume that contains a lot of protein. One of the uses of cowpea as a food ingredient is protein isolate. The purpose of this study was to determine the type and concentration of chemicals suitable for cowpea protein isolate as well as its physical and chemical properties. Implementation of modified cowpea protein isolate was divided into three stages. The first stage is to determine the best results from the addition of certain types and concentrations of chemicals: a) CH3COOH (3%, 5%, 7%); b) CaSO4 (0.25%; 0.30%; 0.35%) and c) MgSO4 (0.25%; 0.30%; 0.35%). The second stage is to combine each of the best treatments. There are three treatments, namely treatment A is the addition of the best CH3COOH concentration with the best CaSO4 concentration. Treatment B is the best concentration of CH3COOH and the best concentration of MgSO4. Treatment C was the best concentration of CaSO4 and the best concentration of MgSO4. The third stage is the analysis of the physical and chemical properties of the treatment combinations formed. Each treatment was replicated three times. The data obtained were then analyzed descriptively. The results of the analysis are presented in the form of tables and histograms. The best treatment of chemically modified cowpea protein isolate was in treatment C (addition of 0.35% CaSO4 and 0.35% MgSO4), which had a gel strength texture of 13.87 gram force/0.1mm; with a water content of 81.04%; ash 6.77%; and protein 92.53%; and has the highest protein solubility at pH 8 of 22.47 mg/g.
Karakteristik mutu fisik, kimia dan umur simpan beras analog dari campuran tepung ubi jalar ungu, jagung dan sagu Feri Kusnandar; Faleh Setia Budi; Dias Indrasti; Nur Annisa; Kezia Grace Abraham; Azizah Tsaniya Fasya; Yane Regiyana; Slamet Budijanto
AGROINTEK Vol 18, No 2 (2024)
Publisher : Agroindustrial Technology, University of Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/agrointek.v18i2.17352

Abstract

Flours made from a mixture of purple sweet potato, corn, and sago have potential use in producing analog rice. The desired analog rice should contain good nutritional value, bioactive components, and have a long shelf life. The aim of this study was to evaluate the physicochemical characteristics of analog rice made from these mixed flours and to determine its shelf life. To produce the analog rice, a mixture of 2700 g purple sweet potato flour, 2700 g corn flour, 600 g sago flour, and 120 g glycerol monostearate was used with a twin-screw extruder. The resulting analog rice was analyzed for its chemical composition, total phenolic and anthocyanin content, antioxidant capacity, and shelf life using the critical moisture content method. The analog rice was found to be high in carbohydrates as the main component (81.1%) and contained a total phenolic content of 75.0 mg/100g, anthocyanin content of 19.28 mg/100g, and antioxidant activity of 54.66%. The natural purple color of the rice analog was attributed to the presence of anthocyanin (L= 36.7, a=6.54; b=3.05). When stored in polypropylene packaging at a temperature of 30°C and relative humidity (RH) of 75%, the shelf life of the analog rice was found to be 6.0 months. Different storage conditions and packaging types resulted in varying shelf-lives.
Front Matter, Volume 18 No 2 (2024) Editorial Agrointek
AGROINTEK Vol 18, No 2 (2024)
Publisher : Agroindustrial Technology, University of Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/agrointek.v18i2.25689

Abstract

Karakterisasi dan identifikasi khamir proteolitik dari belacan depik, pasta ikan fermentasi khas Gayo Eva Murlida; Cut Nilda; Heru Prono Widayat; Murna Muzaifa
AGROINTEK Vol 18, No 2 (2024)
Publisher : Agroindustrial Technology, University of Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/agrointek.v18i2.20022

Abstract

Belacan depik is one of Gayo's fermented fish products, which is still rarely studied scientifically. This product is a fermented fish paste made from depik fish (Rasbora Tawarensis). Scientific studies regarding the yeast involved in the fermentation of depik fish have never been reported. This study aims to characterize and identify yeasts that have proteolytic activity. This study was designed as an exploratory laboratory study, beginning with the isolation and characterization of the yeast from belacan depik and identification molecularly. The three pure isolates Y1, Y2 and Y3 that were successfully isolated had various morphological and biochemical characteristics. Only Y2 isolate has proteolytic activity. The results of molecular recognition showed that isolate B1 was identified as Rhodotorula mucilaginosa strain IMUFRJ 52392 with 100% homology and query cover. The identification of Rhodotorula in belacan depik products indicates a certain role during fermentation. Further studies are needed regarding its role during fermentation and its potential as a biological agent in improving the quality of belacan depik.
Analisis pengembangan produk abon ikan tuna menggunakan metode quality function deployment (QFD) Dhian Herdhiansyah; Sakinah Ambang; Muhammad Syukri; Asriani Asriani; Mariani Mariani
AGROINTEK Vol 18, No 2 (2024)
Publisher : Agroindustrial Technology, University of Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/agrointek.v18i2.16247

Abstract

The study's purpose was to analyze shredded tuna products' development using the Quality Function Deployment (QFD) method. Research subjects are parties involved in shredded tuna fish products' micro—business determination of the number of samples using the Bernoulli formula. as many as 60. QFD analysis stages include: (1) customer requirements analysis: (2) importance level analysis: (3) satisfaction level analysis: (4) goal value analysis (improvement targets to be achieved): (5) improvement ratio analysis: (6) sales point analysis: (7) natural weight analysis: (8) normalized raw analysis (8) technical requirements analysis: (9) technical requirements score analysis: (10) customer requirements score analysis: (11) technical correlation analysis: and (12) analysis of technical correlation scores. The study's results showed that 34 attributes of shredded tuna products were obtained from as many as 11 technical responses proposed in product development. Furthermore, from the 11 technical responses, eight technical answers were obtained that had a significant influence on the product development plan, including: (1) choosing to use easy-to-read fonts/writings; (2) information on the manufacture of packaging designs: (3) information on the nutritional value of shredded tuna fish in the manufacture of new packaging designs; (4) adding to the composition of the ingredients; (5) inspection of the composition and quality of raw materials; (6) the love tagline for Indonesian products in the new packaging design; (7) make packaging designs with new product brands; and (8) the innovation of making shredded tuna with a variety of new flavors.
Studi perbandingan metode oksidasi enzimatis terhadap aktivitas antioksidan ekstrak air teh kratom (Mitragyna speciosa Korth.) Brigita Ratna Harsanti; Sulvi Purwayantie; Dzul Fadly
AGROINTEK Vol 18, No 2 (2024)
Publisher : Agroindustrial Technology, University of Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/agrointek.v18i2.15165

Abstract

One of the kratom (Mitragyna speciosa Korth.) products in Kapuas Hulu is fermented kratom tea powder, produced by the enzymatic oxidation process, which is very different from the processing of black tea. Until now, there has been no research on the manufacture of fermented kratom tea powder using the black tea enzymatic oxidation method. This study aimed to determine the differences between the enzymatic oxidation method to the antioxidant activity of water extract kratom tea. The technique used in this study was a comparative method to compare the data obtained from water extract kratom tea. The treatments compared were the manufacture of fermented kratom tea powder with the enzymatic oxidation method of the Kapuas Hulu community and the enzymatic oxidation method of black tea. The parameters tested in this study consisted of phenol content, flavonoid content, alkaloid content, and antioxidant activity. The study showed that the phenol and alkaloid contents were higher in product of black tea methods (199.22 mg GAE/g and 44.73%) than Kapuas Hulu traditional methods (50.45 mg GAE/g and 40.68%). Flavonoid content was higher in Kapuas Hulu traditional methods (169.32 mg QE/g) than black tea methods (48.77 mg QE/g). The difference was found in the antioxidant activity of the water extract kratom tea produced by two different enzymatic oxidation methods. The enzymatic oxidation of the black tea method was found to higher antioxidant activity of water extract kratom tea.
Effect of chitosan-tripolyphosphate to suppress anthracnose (Colletotrichum spp.) in post-harvest chili Yadi Suryadi; Dwi Ningsih Susilowati; Jajang Kosasih; Titi Tentrem; I Made Samudra
AGROINTEK Vol 18, No 2 (2024)
Publisher : Agroindustrial Technology, University of Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/agrointek.v18i2.14368

Abstract

Anthracnose disease (Colletotrichum spp.) in chili can lead to low fruit quantity and quality from planting to the postharvest stage. The environmentally friendly management using chitosan (CS) is expected to suppress anthracnose disease and increase the shelf-life of chili. This study aimed to determine the effect of the chitosan-tripolyphosphate (CS-TPP) to suppress anthracnose on chili during postharvest storage through in-vitro and in-vivo assays. In the in-vitro assay, CS-TPP solution with a ratio of [5:2] and [3:1] was applied into a warm Potato Dextrose Agar (PDA) medium. It was grown by Colletotrichum pathogen, while on in vivo assay, CS-TPP was applied to chili fruit before being inoculated by the pathogen. A control treatment was prepared without CS-TPP application. Results revealed that the CS-TPP ratios affected the growth of Colletotrichum spp. at the in-vitro assay. The CS-TPP [5:2] ratio was more effective than CS-TPP [3:1] in reducing the growth of Colletotrichum spp. with the fungal inhibition of 62,65% and 55,56%, respectively, compared to the control treatment. Moreover, it also showed anthracnose disease suppression on chili fruit of 51%, and 29%, respectively, compared to control treatment at in-vivo assay. This study showed the potential use of CS-TPP as a coating application for anthracnose disease management on storage chili, however further study such as viability and longevity of formula need to be done.

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