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传统发酵豆酱中产α-淀粉酶菌株的筛选

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Indexed by:期刊论文

Date of Publication:2015-05-15

Journal:中国酿造

Included Journals:PKU、ISTIC

Volume:34

Issue:5

Page Number:40-42

ISSN No.:0254-5071

Key Words:豆酱;α-淀粉酶活性;曲霉菌;青霉菌

Abstract:α-淀粉酶广泛分布于动物、植物和微生物中,能水解淀粉产生糊精、麦芽糖、低聚糖和葡萄糖等,是食品工业中应用最为广泛的酶制剂之一.从东北三省传统的家庭自制豆酱上获得纯培养真菌389株,通过可溶性淀粉平板初筛获得具有α-淀粉酶活性的菌株34株,其中曲霉属的真菌14株、青霉12株、毛霉2株、镰孢菌2株、帚霉1株、犁头霉l株、木霉2株.米曲霉(Aspergillus oryzae)、橘灰青霉(Penicillium aurantiogriseum)和疣状青霉(Penicillium verrucosum)出现频率较高,是豆酱发酵过程中产生α-淀粉酶的优势种群.

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