PENGARUH PENAMBAHAN BAHAN PENGAWET TERHADAP KARAKTERISTIK SARI BUAH TOMAT (Lycopersicum esculentum Mill) SELAMA PENYIMPANAN DINGIN

SUCIATI, HIKMAH and Widowati, Tri Wardani and Syaiful, Friska (2016) PENGARUH PENAMBAHAN BAHAN PENGAWET TERHADAP KARAKTERISTIK SARI BUAH TOMAT (Lycopersicum esculentum Mill) SELAMA PENYIMPANAN DINGIN. Undergraduate thesis, Sriwijaya University.

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Abstract

Utilization of tomatoes has not been optimal. That is still limited as the cosumption of fresh fruit and seasoning. Utilization and increase the economics value of tomato can be done through the diversification of tomato products namely tomato juice. The research objective was to determine the effect of preservative on characteristic tomatoes juice during cold storage. The research were conducted at the Laboratory of Chemistry Agricultural Product, Laboratory of Microbiology and Laboratory of Sensory, Department of Agricultural Technology, Agricultural Faculty, Sriwijaya University, Indralaya on April 2016. The research was designed as a non factorial completely randomized design with fator: citric acid (0.05%, 0.1%, 0.15%), sodium benzoate (0.05%, 0.1%) and control. The parameters were chemical characteristics (vitamin C, pH and total acid), microbiology characteristic (total microbial) and sensory characteristics (hedonic test of colour, flavour and taste). The result showed that the addition citric acid and sodium benzoate had a significant effect on vitamin C, pH, total acid, total microbial and sensory (color and flavour) during nine days of cold storage. The vitamin C and pH decreased after nine days of cold storage, but total acid and total microbial increased during nine days of cold storage. The best treatment based on hedonic test was A1 (citric acid 0.05%) with hedonic scores for color 3.28, flavour 3.16 and taste 2.92). The best tomatoes juice had vitamin C 13.73 mg/100mL, pH 4.37, total acid 1.07% and total microbe 4.38 log CFU/mL .

Item Type: Thesis (Undergraduate)
Uncontrolled Keywords: Citric acid, sodium benzoate, juice, tomatoes
Subjects: H Social Sciences > HD Industries. Land use. Labor > HD9000-9495 Agricultural industries > HD9000.5.B313 Agricultural industries--Management. Food industry and trade--Management. Food--Marketing--Case studies. Corporations--Finance--Case studies. Industries--Environmental aspects--Case studies. Corporation law.
Divisions: Faculty of Agriculture > 41231-Agricultural Product Technology (S1)
Depositing User: Mrs Sri Astuti
Date Deposited: 11 Nov 2019 04:12
Last Modified: 11 Nov 2019 04:12
URI: http://repository.unsri.ac.id/id/eprint/15629

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