KARAKTERISTIK FISIK DAN KIMIA BUAH NANAS (Ananas comosus (L.) Merr.) POTONG VARIETAS CAYENNE HASIL ULTRASONIKASI

HERMAWAN, MUHAMAD ARIEFKI and Pratama, Filli (2021) KARAKTERISTIK FISIK DAN KIMIA BUAH NANAS (Ananas comosus (L.) Merr.) POTONG VARIETAS CAYENNE HASIL ULTRASONIKASI. Undergraduate thesis, Sriwijaya University.

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Abstract

People who have limitations in consuming sugar are not recommended to consume product with high sugar content. One of the fruit which has high sugar content is pineapple. Ultrasonication is one of the way to reduce sugar content in pineapple. This study aimed to determine the effect of ultrasound frequency and duration on the physical and chemical characteristics of sliced pineapple of cayenne variety. This research was carried out from March until June 2021 at Laboratory of Agricultural Product Processing and Laboratory of Agricultural Product Chemical, Department of Agricultural Technology, Faculty of Agriculture, Sriwijaya University. The experiment was designed as a Factorial Completely Randomized Design (RALF) with two treatment factors ultrasound frequency (20 kHz and 40 kHz) and duration of contact (10, 15, 20, 25, 30 and 40 minutes). The observed parameters on pineapple were color (lightness (L*), redness (a*), yellowness (b*) and total color difference (ΔE*), texture, total sugar content, pH and vitamin C content. The results showed that the duration of contact ultrasonications had a significant effect on total sugar content and pH of sliced pineapple. The A1B6 treatment (20 kHz, 40 minutes) was the treatment with the lowest total sugar content is 9.00%°brix with a characteristic of pH 4.13, vitamin C content 42.01 mg/100 g, lightness 55.60%, redness 3.33, yellowness 36.63, total color difference 13.35 and texture 39.46 gf.

Item Type:	Thesis (Undergraduate)
Uncontrolled Keywords:	nanas, ultrasonikasi, varietas cayenne
Subjects:	S Agriculture > S Agriculture (General) > S1-(972) Agriculture (General)
Divisions:	05-Faculty of Agriculture > 41231-Agricultural Product Technology (S1)
Depositing User:	Muhammad Ariefki Hermawan
Date Deposited:	29 Jul 2021 08:25
Last Modified:	29 Jul 2021 08:25
URI:	http://repository.unsri.ac.id/id/eprint/50747

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