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자료유형
학술저널
저자정보
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한국식품영양과학회 Journal of Food Science and Nutrition Journal of Food Science and Nutrition Vol.9 No.2
발행연도
2004.6
수록면
138 - 143 (6page)

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Soybean curd residues (SCR) obtained from hot and cold manufacturing processes were fermented by indigenous microorganisms, Lactobacillus rhamnosus LS and Bacillus firmus NA-1 for 15 h at 37℃. The pH, acidity, viable cell counts, and tyrosine content were evaluated in samples with variations in sugar, starter and type of SCR. The raw Doowon SCR (D-SCR, cold-processed) fermented by indigenous microorganism had a 0.9% acidity and 6.7×10^7 CFU/g viable cell counts, compared with the 0.11% acidity and 6.7×10^6 CFU/g viable cell counts of raw fermented Pulmuwon SCR (P-SCR, hot-processed). After fermentation of raw P-SCR with 1% glucose and 1% L. rhamnosus LS starter, the viable cell counts, tyrosine content and acidity were 4.7×10^8 CFU/g, 16.3 mg% and 0.9%, respectively. In addition, the raw P-SCR fermented with Bacillus firmus NA-1 as co-starter had a 0.45% acidity, 2.4×10^8 CFU/g lactic acid bacteria, and 3.3×10^6 CFU/g Bacillus sp. In particular, the tyrosine content was increased 5 fold. The drying of fermented SCR was completed by hot-air drying (50℃) within 12 h; the dried P-SCR and D-SCR had 1.8×10^7 CFU/g and 5.3×10^6 CFU/g viable cell counts, respectively. The concentrate of methanol extract from fermented D-SCR inhibited the initial cell growth of E. coli, Staphylococcus aureus and Pseudomonas aeruginosa in liquid culture.

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Abstract

INTRODUCTION

MATERIALS AND METHODS

RESULTS AND DISCUSSION

ACKNOWLEDGEMENTS

REFERENCES

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