PENGARUH VARIASI KONSENTRASI SARI BUAH BELIMBING WULUH (Averrhoa bilimbi L.) PADA PERENDAMAN TAHU TERHADAP PENURUNAN KADAR FORMALIN

BAROROH, RIZQI DWI (2016) PENGARUH VARIASI KONSENTRASI SARI BUAH BELIMBING WULUH (Averrhoa bilimbi L.) PADA PERENDAMAN TAHU TERHADAP PENURUNAN KADAR FORMALIN. Karya Tulis Ilmiah thesis, Universitas Setia Budi Surakarta.

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Abstract

Tofu is a food with a moisture content reaches 85% so that tofu can not be preserved. Some tofu agents known to use formaldehyde as a tofu preservative. One way to reduce levels of formaldehyde are using starfruit (Averrhoa bilimbi L.) juice. The purpose of this reseach was to determine the effect of the concentration of starfruit (Averrhoa bilimbi L.) juice in soaking tofu towards decreased levels of formaldehyde in the tofu. This study begins with a qualitative test on tofu, then perform tofu soaking with 4.95% formaldehyde. Tofu with formalin soaked with starfruit (Averrhoa bilimbi L.) juice 20%, 30% and 40%. Soaking is done within 60 minutes. Quantitative Test on formaldehyde levels were mesuared by UV-vis spectrophotometry method at maximum wavelength 420.4 nm using Nash reagent. The results from this reseach showed that the levels of formaldehyde in the tofu decreases with increasing concentration of starfruit juice, average levels of formaldehyde in the sample with soaking starfruit juice concentrations 0%, 20%, 30%, and 40% in a row is: 0.412%; 0.200%; 0.150%; and 0.018%. The results of data analysis showed significant differences between all of four variations of the concentration of starfruit juice to decreased levels of formaldehyde, which means that the average treatment groups were not same. Keywords: tofu, , formalin, starfruit (Averrhoa bilimbi L.) juice

Item Type: Thesis (Karya Tulis Ilmiah)
Uncontrolled Keywords: tofu, , formalin, starfruit (Averrhoa bilimbi L.) juice
Subjects: R Medicine > RS Pharmacy and materia medica
S Agriculture > S Agriculture (General)
Divisions: Fakultas Ilmu Kesehatan > Prodi D3 Analis Kesehatan
Depositing User: magdalena kartika ningsih
Date Deposited: 10 Oct 2019 04:25
Last Modified: 10 Oct 2019 04:25
URI: http://repository.setiabudi.ac.id/id/eprint/1702

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