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  • 标题:Production and partial characterization of lipase from Penicillium verrucosum obtained by submerged fermentation of conventional and industrial media
  • 本地全文:下载
  • 作者:Pinheiro, Thaís da Luz Fontoura ; Menoncin, Silvana ; Domingues, Natália Molossi
  • 期刊名称:Food Science and Technology (Campinas)
  • 印刷版ISSN:0101-2061
  • 电子版ISSN:1678-457X
  • 出版年度:2008
  • 卷号:28
  • 期号:2
  • 页码:444-450
  • DOI:10.1590/S0101-20612008000200028
  • 语种:English
  • 出版社:Sociedade Brasileira de Ciência e Tecnologia de Alimentos
  • 摘要:

    The growing interest in lipase production is related to the potential biotechnological applications that these enzymes present. Current studies on lipase production by submerged fermentation involve the use of agro-industrial residues aiming at increasing economic attractiveness. Based on these aspects, the objective of this work was to investigate lipase production by Penicillium verrucosum in submerged fermentation using a conventional medium based on peptone, yeast extract, NaCl and olive oil, and an industrial medium based on corn steep liquor, Prodex Lac (yeast hydrolysate), NaCl and olive oil, as well as to characterize the crude enzymatic extracts obtained. Kinetics of lipase production was evaluated and the highest enzymatic activities, of 3.15 and 2.22 U.mL-1, were observed when conventional and industrial media were used, respectively. The enzymatic extract showed optimal activity in the range from 30 to 40 °C and at pH 7.0. Although the industrial medium presents economical advantages over the conventional medium, the presence of agro-industrial residues rich in nitrogen and other important nutrients seemed to contribute to a reduction in lipase activity.

  • 关键词:lipases;Penicillium verrucosum;fermentação submersa;caracterização parcial
  • 其他关键词:lipases;Penicillium verrucosum;submerged fermentation;partial characterization
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