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자료유형
학술저널
저자정보
저널정보
한국식품영양과학회 Journal of Food Science and Nutrition Journal of Food Science and Nutrition Vol.6 No.2
발행연도
2001.6
수록면
96 - 100 (5page)

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초록· 키워드

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Mixtures prepared from whole milk with added skim milk powder (2.5%, w/v) and Angelica keiskei juice (1.5%, w/v) were fermented with lactic acid bacteria (single and mixed culture of Lactobacillus bulgaricus and Strpetococcus thermophilus) for 24 hours. The fermented mixtures (curd yogurt) were evaluated for acid production (pH and titratable acidity), cell numbers, viscosity, sensory property and keeping quality. Results indicated that the addition of Angelica keiskei stimulated the acid production by lactic acid bacteria. The number of viable cells reached 4.5~7.3×10^9 CFU/mL for Angelica keiskei-added yogurts, while 3.3~5.1×10^9 CFU/mL for control yogurts. Viscosity of Angelica keiskei-added yogurts was higher (3,609~3,854 centipoises) than that of control yogurts (3,346~3,700 centipoises). Of the microorganism tested, mixed culture of Lactobacillus bulgaricus and Streptococcus thermophilus was most effective in acid production. The overall sensory score showed that Angelica keiskei yogurt fermented with Streptococcus thermophilus was evaluated as good as control yogurt. When yogurts were stored at 4℃ for 12 days, pH, titratable acidity and viable cells of lactic acid bacteria were not significantly changed (p<0.05).

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Abstract

INTRODUCTION

MATERIALS AND METHODS

RESULTS AND DISCUSSION

ACKNOWLEDGEMENTS

REFERENCES

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