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Pseudomonas sp. LS13-1 was isolated as a producer of lactobionic acid from whey and when grown with 207 g whey l−1 (150 g lactose l−1 equivalent) and three intermittent additions of 69 g whey l−1 (50 g lactose l−1 equivalent) in a fed-batch culture at pH 5.5 in a 2-l jar fermenter, it produced 175 g lactobionic acid l−1 after 180 h. In a lactose medium it produced 240 lactobionic acid l−1 from a...
A newly isolated strain of Bacillus subtilis produced β-mannanase when cultivated in a medium containing either locust bean gum, konjac mannan or guar gum as a sole carbon source. In contrast, xylanase was produced only when oat spelt xylan or wheat bran was used as a carbon source. The culture supernatant, which contained both β-mannanase and xylanase, was used to biobleach crude paper pulp to 50%...
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