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All Journal International Journal on Food, Agriculture and Natural Resources (IJFANRES) Journal of Food Engineering
Puspitania, Dewi Arum
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry

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Effect of Porang Glucomannan Flour Formulation on the Characteristics of the Edible Coating Solution and The Quality of Manalagi Apples during Storage Rusdianto, Andrew Setiawan; Amilia, Winda; Puspitania, Dewi Arum
International Journal on Food, Agriculture and Natural Resources Vol 5, No 4 (2024): IJ-FANRES
Publisher : Food, Agriculture and Natural Resources - NETWORKS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46676/ij-fanres.v5i4.346

Abstract

Manalagi apples are an agricultural product that is easily damaged. Damage that occurs to Manalagi apples can be inhibited with an edible coating. The edible coating is a coating on the surface of fruit that can maintain quality and extend shelf life. Edible coatings can be made from hydrocolloids, including porang glucomannan. This research aims to determine the quality characteristics of Manalagi apples after being coated with an edible coating. Apart from that, to analyze the effect of glucomannan flour concentration on the quality characteristics of Manalagi apples, the viscosity of the edible coating solution, and the characteristics of the resulting coating and to choose the best treatment using the multiple attribute method. This research uses a Completely Randomized Design (RAL) with three replications. The treatment in this study was a glucomannan flour formulation of 5 levels, namely A0 (without treatment), A1 (0.5%), A2 (0.75%), A3 (1%), A4 (1.25%), carried out for storage for 7 days and observed on days 1, 3, 5, and 7 at room temperature (± 25℃). Porang glucomannan flour in edible coating significantly affected in respiration rate but had no significant effect on weight loss, L color, b color, and total dissolved solids. The best treatment based on calculation results using the multiple attribute method is A2 (0.75%) with the lowest weight loss was 2.97%, the highest L color with a value of 80, the lowest b color with a value of 15.1, the lowest total dissolved solids with a value of 11.6°Brix, the lowest respiration rate with a value of 0.006 ml CO2/gr/hour.
Aplikasi Coating Berbasis Glukomanan Porang pada Buah Apel Manalagi Potong: Application of Porang Glucomannan Based Coating on Fresh Cut Manalagi Apples Setiawan Rusdianto, Andrew; Amilia, Winda; Puspitania, Dewi Arum
JOFE : Journal of Food Engineering Vol. 3 No. 4 (2024): October
Publisher : Politeknik Negeri Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25047/jofe.v3i4.4958

Abstract

Fresh cut apples are one of the minimally processed products that is widely marketed. However, cut apples have disadvantages because they easily experience enzymatic browning as a result of the oxidation process after the cutting process. Edible coating made from porang glucomannan can inhibit oxygen diffusion so that browning can be inhibited. The objective of this research is to determine the best porang glucomannan concentration in edible coatings on changes in brightness in fresh cut apples stored at 7℃. The research method used was an experimental method using a Completely Randomized Design (RAL). The experiment was carried out in 5 treatments ((AP0, AP1, AP2, AP3, AP4)) and 3 repetitions. The edible coating is applied using the dipping method and stored at temperature 7℃ for 3 hours. The data obtained were analyzed using one way ANOVA and continued with Duncan's Multiple Range Test (DMRT). The results of the research showed that the formulation of porang glucomannan flour in edible coating had a significant effect on the brightness of fresh cut apples. Fresh cut apples with the highest brightness are in the AP2 treatment with a value of 86.1; 85.4; 85.1; 84.7; 84.1; and 83.5 measured every 30 minutes for 3 hours when stored at 7℃.
Co-Authors Rusdianto, Andrew Setiawan Setiawan Rusdianto, Andrew Winda Amilia