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Применить Всего найдено 2. Отображено 2.
27-06-2023 дата публикации

Composition for improving stability of liquid alkaline protease and use method

Номер: CN116334058A
Автор: ZHOU QIAN, MA YUNSHENG, YANG CHUANLUN, LIU JIELEI, FENG LIJUAN, SUN NA, CHEN ZHENFA, YANG DANDAN, CHENG LUNAN, YANG CHAOYANG
Принадлежит:

The invention belongs to the technical field of protease, and particularly relates to a composition for improving stability of liquid alkaline protease and a using method thereof.The composition comprises 50%-80% of propylene glycol, 10%-30% of sodium chloride, 5%-10% of sodium hydrogen sulfite, 2%-10% of Kathon and 2%-5% of 4-formylphenylboronic acid, and the most stable pH is 5-6 when the composition is used. The composition provided by the invention can effectively improve the stability of a liquid protease preparation, so that the liquid protease can still keep the enzyme activity of 90% or more after being stored for 1 month at 40 DEG C, and the stability is superior to that of a commercially available protease stabilizer product; after the composition is added, the stability of the protease diluent can be remarkably improved, the storage life of the liquid protease can be effectively prolonged, and popularization and application of the liquid protease are facilitated.

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Номер записи: 1
14-04-2023 дата публикации

Three-in-one compound enzyme and application

Номер: CN115960863A
Автор: FENG LIJUAN, MA YUNSHENG, YANG CHUANLUN, LIU JIELEI, ZHOU QIAN, YANG CHAOYANG, SUN NA, GUO ZHONGRUI, HE MINGLIANG, LIU WENLIN
Принадлежит:

The invention relates to a three-in-one compound enzyme and application thereof.The three-in-one compound enzyme is formed by mixing alkaline protease, alkaline lipase and amylase or cellulase, the alkaline protease is a liquid preparation obtained through treatment after fermentation of bacillus subtilis, the strain is preserved in the China General Microbiological Culture Collection Center, and the preservation number of the strain is CGMCC NO. The preservation number of the strain is CGMCC No.24316; the alkaline lipase is a liquid preparation obtained by fermentation and post-treatment of pichia pastoris. According to the technical scheme, by means of the compounding mode, different enzymes can play the maximum role in washing, protease can be inhibited in the storage process, the hydrolysis rate of the protease or other enzymes is reduced, stable storage can be achieved, in addition, the fermented alkaline protease and lipase are high in dirt-removing power, and therefore the cleaning ...

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Номер записи: 2