By BIOTOL, B C Currell, R C E Dam-Mieras

ISBN-10: 0750605618

ISBN-13: 9780750605618

Demonstrates how organic catalysis will be utilized to the construction of worth extra chemical compounds. Use is made up of a various diversity of case stories to offer a breadth of expertise. It additionally unearths how bio-systems are being hired to supply quite a lot of worthwhile commodities together with antibiotics and different therapeutics, middleman metabolites reminiscent of citrate, malate, gels and different precious polymers.

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Extra info for Biotechnological Innovations in Chemical Synthesis (Biotechnology by Open Learning)

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The liquor contains about 20% w/v sugars, in the form of both hexoses (6carbon sugars) and pentoses (5-carbon sugars), and 6% w/v acetic acid and has a BOD of up to 50,000 mg G 1". Processes have been operated growing Candida utilis for food or feed but the most effective has produced feed from Paecibmyces azrioti (the Pekilo process). This organism more effectively uses pentose sugars and the acetic acid present in the substrate compared to With spp, and so gives higher output and greater BOD reduction.

The texture may not be the same as in conventional foods, particularly with unicellular organisms. These draw-backs can be ovexromeby adding a proportion of SCP to manufactured foods. However, even when SCP is incorporated into manufactured foods it may not have suitablecharacteristicssuch as stability, ability to bind water or fats, or ability to form gels, emulsions or foams. SCP for feed does not have to meet such strict requirements. What happens after you have eaten them? Even if a micro-organism is palatable it may not necessarily be acceptable to the human digestive system, and if eaten in quantity can produce indigestion, flatulence, nausea, vomiting or diarrhoea.

Our response: 1) 2) True. Batch cultures give lower overall outputs than continuous cultures, as they suffer from non-productive down-time (the time taken to empty, clean, re-sterilise and re-fill the fermentor). After inoculation, considerable time can be taken for biomass to build up to a level where substrates are effectively utilised. Continuous cultures do not suffer such drawbacks once they are in operation. False. Continuous culture systems are more difficult to operate than batch cultures.

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Biotechnological Innovations in Chemical Synthesis (Biotechnology by Open Learning) by BIOTOL, B C Currell, R C E Dam-Mieras

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