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>Pengaruh Ketebalan Substrat pada Fermentasi Tempe terhadap Kadar Vitamin B1 (The Influence Of Substrate Thickness During Tempe Fermentation On Vitamins B1 Level)
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Pengaruh Ketebalan Substrat pada Fermentasi Tempe terhadap Kadar Vitamin B1 (The Influence Of Substrate Thickness During Tempe Fermentation On Vitamins B1 Level)
The level of vitamin B1 in tempe could be increased by modifying the surface of substrate during soybean fermentation. This research aimed to know the influence of substrate thickness during soybean fermentation into tempe to the levels of vitamin B1. The design of this research was completed randomized design with two replication. Vitamin B1 content was analyzed on raw soybeans, boiled soybeans, and tempe using spectrophotometer methods. The substrate thicknesses examined were 0.25 cm, 0.50 cm and 1.00cm. Vitamin B1 level on raw soybean was 0.7436 mg percent and on boiled soybean was 0.4898 mg percent, while in tempe with substrate thickness 0.25 cm, 0.50 cm and 1.00 cm, the vitamin B1 contents were 1.1413, 0.9044, and 0.7130 mg percent respectively. The thickness of tempe substrate affected on vitamin B1 content. A thinner substrate resulted on higher vitamin B1 level.
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