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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Применить Всего найдено 4. Отображено 4.
25-08-2010 дата публикации

Novel technique for extracting L-tryptophan from fermentation broth

Номер: CN0101812009A
Автор: LIJUN DENG, ZONGPAN MENG, CHUNGUANG ZHAO, SHAN ZUO, DENG LIJUN, MENG ZONGPAN, ZHAO CHUNGUANG, ZUO SHAN
Принадлежит:

The invention discloses a novel technique for extracting L-tryptophan from fermentation broth, which includes the following steps that: fermentation broth is pretreated, and the treated liquid is pumped into a ceramic microfiltration membrane filter, so that tryptophan microfiltrate without mycelium and mycoprotein are obtained; the tryptophan microfiltrate is pumped into an ultrafiltration membrane filter, so that tryptophan ultrafiltrate and concentrated liquid containing pigment and protein are obtained; the tryptophan ultrafiltrate is pumped into a nanofiltration membrane filter, so that concentrated tryptophan liquid and permeate containing salt are obtained; waste filtrate is comprehensively utilized to produce protein feed; industrial ethylic acid is used for promoting low-temperature crystallization, crystallization mother liquid is treated by the ion exchange method and used, and after crystals are centrifugally dehydrated and dried, the L-tryptophan product is obtained. The invention ...

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Номер записи: 1
23-11-2011 дата публикации

Production method for extracting tryptophan from fermentation liquor by one-step refining

Номер: CN0101863822B
Автор: LIJUN DENG, ZONGPAN MENG, CHUNGUANG ZHAO, DENG LIJUN, MENG ZONGPAN, ZHAO CHUNGUANG
Принадлежит:

The invention discloses a production method for extracting tryptophan from fermentation liquor by one-step refining, which comprises the pretreatment of the fermentation liquor. In the method, mycoprotein is filtered off by using a ceramic microfiltration membrane, is decolorized by using an ultrafiltration membrane and is desalted and concentrated by using a nanofiltration membrane; the nanofiltration membrane concentrated liquor is directly decolorized by using activated carbon, the decolorized liquor is subjected to isoelectric point crystallization at a low temperature, and a qualified competitive product is obtained by rinsing with ice water during centrifugal separation; the crystallization mother liquor returns to the nanofiltration membrane for circulation; protein feed with high additional value is prepared by mixing, drying and crushing the ultrafiltration strong liquor and mycoprotein; and nanofiltration strong brine can be used as a culture medium for later use or sold serving ...

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Номер записи: 2
14-12-2011 дата публикации

Novel technique for extracting L-tryptophan from fermentation broth

Номер: CN0101812009B
Автор: DENG LIJUN, MENG ZONGPAN, ZHAO CHUNGUANG, ZUO SHAN, LIJUN DENG, ZONGPAN MENG, CHUNGUANG ZHAO, SHAN ZUO
Принадлежит:

The invention discloses a novel technique for extracting L-tryptophan from fermentation broth, which includes the following steps that: fermentation broth is pretreated, and the treated liquid is pumped into a ceramic microfiltration membrane filter, so that tryptophan microfiltrate without mycelium and mycoprotein are obtained; the tryptophan microfiltrate is pumped into an ultrafiltration membrane filter, so that tryptophan ultrafiltrate and concentrated liquid containing pigment and protein are obtained; the tryptophan ultrafiltrate is pumped into a nanofiltration membrane filter, so that concentrated tryptophan liquid and permeate containing salt are obtained; waste filtrate is comprehensively utilized to produce protein feed; industrial ethylic acid is used for promoting low-temperature crystallization, crystallization mother liquid is treated by the ion exchange method and used, and after crystals are centrifugally dehydrated and dried, the L-tryptophan product is obtained. The invention ...

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Номер записи: 3
20-10-2010 дата публикации

Production method for extracting tryptophan from fermentation liquor by one-step refining

Номер: CN0101863822A
Автор: LIJUN DENG, ZONGPAN MENG, CHUNGUANG ZHAO, DENG LIJUN, MENG ZONGPAN, ZHAO CHUNGUANG
Принадлежит:

The invention discloses a production method for extracting tryptophan from fermentation liquor by one-step refining, which comprises the pretreatment of the fermentation liquor. In the method, mycoprotein is filtered off by using a ceramic microfiltration membrane, is decolorized by using an ultrafiltration membrane and is desalted and concentrated by using a nanofiltration membrane; the nanofiltration membrane concentrated liquor is directly decolorized by using activated carbon, the decolorized liquor is subjected to isoelectric point crystallization at a low temperature, and a qualified competitive product is obtained by rinsing with ice water during centrifugal separation; the crystallization mother liquor returns to the nanofiltration membrane for circulation; protein feed with high additional value is prepared by mixing, drying and crushing the ultrafiltration strong liquor and mycoprotein; and nanofiltration strong brine can be used as a culture medium for later use or sold serving ...

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Номер записи: 4