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All Journal Warta IHP (Warta Industri Hasil Pertanian)
Sofiah, Siti
Balai Besar Industri Agro
Agriculture, Biological Sciences & Forestry Industrial & Manufacturing Engineering

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(study on extraction of "Gayam" starch). Sofiah, Siti; Gardjito, Murdiati
Warta Industri Hasil Pertanian Vol 8, No 02 (1991)
Publisher : Balai Besar Industri Agro

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Abstract

starch was prepared from "Gayam" (inocarpus edulis) seeds in order to increase itsw  shelf life and diversifyb the products.The yield of starch was about 20% the shelled seeds and the degree of gelatinization was 81-85 degree C. Bleaching process affected the corbohydrate content of the starch but not its whitennes.The use of 300 ppm sodium metabisulfite solution decrease the carbohydrate content up to 28.60%.
(A Study on The Effect of Temperature, pH and Hidrolizing Time in The Extraction of Pectin from Passion Fruit Pericarp (Passiflora edulis sims). SK, Subardj; Sofiah, Siti; Tarmidji, Entjep; Astuti, Juli
Warta Industri Hasil Pertanian Vol 6, No 02 (1989)
Publisher : Balai Besar Industri Agro

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Abstract

A study on the effect of temperature, pH and time in hydrolizing passion fruit pericarp to produce pectin has been conducted. The result showed that the application of variable temperature altered the amount of pectin obtained significantly. However there was no significant effect of using variable pH and time of hidrolization as well as their interactions  on it. As much as 11,89% (d.b) of pectin was obtained at the hidrolization temperature of 100 C , which higher compared to that of the temperature of 60 C (9,85%) and of 80 C (10, 54%). Pectin obtained from the passion fruit pericarp extraction was categorized as a High Methoxyl Pectin which has the methoxyl content of more than 7%, with a jelly grade of 100 and a slow set characteristic that is setting time of about 3 minutes.
Co-Authors Astuti, Juli Gardjito, Murdiati SK, Subardj Tarmidji, Entjep