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All Journal Jurnal AGROTEKNOLOGI
Nur Aini
Program Studi Teknologi Pangan, Fakultas Pertanian, Universitas Jenderal Soedirman
Agriculture, Biological Sciences & Forestry

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PRODUK ENKAPSULASI ASAP CAIR SEKAM PADI DAN APLIKASINYA UNTUK MENGAWETKAN TAHU PUTIH Ana Andiana; Nur Aini; Karseno Karseno
JURNAL AGROTEKNOLOGI Vol 13 No 02 (2019)
Publisher : Faculty of Agricultural Technology, University of Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (872.971 KB) | DOI: 10.19184/j-agt.v13i02.13994

Abstract

Tofu is a perishable food product, thus requiring a safe natural preservative. Liquid smoke from rice husk can be used as a tofu preservative, but its use in liquid form is less practical. Liquid smoke encapsulation process is a way to resolve the issue. The research objectives were to study the antibacterial activity of liquid smoke from rice husks and their encapsulated products, the effect of the concentration of liquid smoke encapsulation products on the shelf life of white tofu during storage, and the optimal concentration of liquid smoke encapsulation products that were able to maintain the quality of white tofu during storage. This type of research was experimental using a Split Plot Design, with the main plot was the concentration of encapsulated products, while the sub-plot was the storage time. Factors studied were the storage time (0, 2, 4 and 6 days) and encapsulation product concentrations (0, 0.5, 1, 1.5 and 2%). There were 20 combinations of treatment, repeated two times in order to get 40 units of trial. The results showed that the liquid smoke of rice husk had total phenol of 1,624.62 mg GAE/g, also had antibacterial activity against Escherichia coli ATCC and Staphylococcus aureus ATCC. Encapsulation product of rice husk liquid smoke had total phenol of 3,125 mg GAE/g and antibacterial activity against Escherichia coli ATCC and Staphylococcus aureus ATCC. The concentration of the encapsulated product affected the value of water content, protein content and the total plate count (TPC) during storage. The concentration of 2% encapsulated product produced the lowest changes during storage. The concentration of 1% encapsulated product resulted in tofu quality that was still organoleptically feasible until the second day of storage. Keywords: encapsulation, liquid smoke, white tofu
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
Co-Authors Ana Andiana Elisabeth Tyastiningrum Ester Mastiur Sitorus Gloria Angelina Karseno Karseno