ASPERGILLUS NIGER;
RAW STARCH DIGESTING AMYLASE;
RAW STARCH;
EXTRACELLULAR AMYLASE;
PRODUCTION;
D O I:
10.1002/jsfa.2740690117
中图分类号:
S [农业科学];
学科分类号:
09 ;
摘要:
Aspergillus niger isolated from rotting cassava produced raw starch degrading amylase on cassava, maize, sorghum and soluble potato-derived starch as the sole carbon source without prior gelatinisation. Maximum activity of the amylase was attained using cassava starch as substrate. The crude enzyme solution which comprised a mixture of raw and non raw starch digesting amylase degraded both cereal and tuber or root starches significantly. Source of assay starch significantly influenced raw starch digesting activity. Optimum pH for the raw starch degrading and the extracellular amylase were 6.0 and 3.5-4.0, respectively. However, both enzyme activities appeared to be uninfluenced across a relatively broad pH range 3.0-7.0. No correlation was found between the capacity of starch to induce expression of the enzyme and its susceptibility to enzyme digestion. The adsorbability of the various starches to raw starch digesting amylase was directly related to their digestibility.
机构:
Stellenbosch Univ, Dept Microbiol, Private Bag X1, ZA-7602 Matieland, South AfricaStellenbosch Univ, Dept Microbiol, Private Bag X1, ZA-7602 Matieland, South Africa
Rose, Shaunita H.
Viljoen-Bloom, Marinda
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机构:
Stellenbosch Univ, Dept Microbiol, Private Bag X1, ZA-7602 Matieland, South AfricaStellenbosch Univ, Dept Microbiol, Private Bag X1, ZA-7602 Matieland, South Africa
机构:
Poznan Univ Life Sci, Dept Biotechnol & Food Microbiol, Ul Wojska Polskiego 48, PL-60627 Poznan, PolandPoznan Univ Life Sci, Dept Biotechnol & Food Microbiol, Ul Wojska Polskiego 48, PL-60627 Poznan, Poland
Gesicka, Aleksandra
Borkowska, Monika
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机构:
Poznan Univ Life Sci, Dept Biotechnol & Food Microbiol, Ul Wojska Polskiego 48, PL-60627 Poznan, PolandPoznan Univ Life Sci, Dept Biotechnol & Food Microbiol, Ul Wojska Polskiego 48, PL-60627 Poznan, Poland
Borkowska, Monika
Bialas, Wojciech
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h-index: 0
机构:
Poznan Univ Life Sci, Dept Biotechnol & Food Microbiol, Ul Wojska Polskiego 48, PL-60627 Poznan, PolandPoznan Univ Life Sci, Dept Biotechnol & Food Microbiol, Ul Wojska Polskiego 48, PL-60627 Poznan, Poland
Bialas, Wojciech
Kaczmarek, Paulina
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机构:
Poznan Univ Life Sci, Dept Biotechnol & Food Microbiol, Ul Wojska Polskiego 48, PL-60627 Poznan, PolandPoznan Univ Life Sci, Dept Biotechnol & Food Microbiol, Ul Wojska Polskiego 48, PL-60627 Poznan, Poland
Kaczmarek, Paulina
Celinska, Ewelina
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机构:
Poznan Univ Life Sci, Dept Biotechnol & Food Microbiol, Ul Wojska Polskiego 48, PL-60627 Poznan, PolandPoznan Univ Life Sci, Dept Biotechnol & Food Microbiol, Ul Wojska Polskiego 48, PL-60627 Poznan, Poland
机构:
Stellenbosch Univ, Dept Microbiol, Private Bag X1, ZA-7602 Matieland, South AfricaStellenbosch Univ, Dept Microbiol, Private Bag X1, ZA-7602 Matieland, South Africa
Rose, Shaunita H.
Viljoen-Bloom, Marinda
论文数: 0引用数: 0
h-index: 0
机构:
Stellenbosch Univ, Dept Microbiol, Private Bag X1, ZA-7602 Matieland, South AfricaStellenbosch Univ, Dept Microbiol, Private Bag X1, ZA-7602 Matieland, South Africa
机构:
Poznan Univ Life Sci, Dept Biotechnol & Food Microbiol, Ul Wojska Polskiego 48, PL-60627 Poznan, PolandPoznan Univ Life Sci, Dept Biotechnol & Food Microbiol, Ul Wojska Polskiego 48, PL-60627 Poznan, Poland
Gesicka, Aleksandra
Borkowska, Monika
论文数: 0引用数: 0
h-index: 0
机构:
Poznan Univ Life Sci, Dept Biotechnol & Food Microbiol, Ul Wojska Polskiego 48, PL-60627 Poznan, PolandPoznan Univ Life Sci, Dept Biotechnol & Food Microbiol, Ul Wojska Polskiego 48, PL-60627 Poznan, Poland
Borkowska, Monika
Bialas, Wojciech
论文数: 0引用数: 0
h-index: 0
机构:
Poznan Univ Life Sci, Dept Biotechnol & Food Microbiol, Ul Wojska Polskiego 48, PL-60627 Poznan, PolandPoznan Univ Life Sci, Dept Biotechnol & Food Microbiol, Ul Wojska Polskiego 48, PL-60627 Poznan, Poland
Bialas, Wojciech
Kaczmarek, Paulina
论文数: 0引用数: 0
h-index: 0
机构:
Poznan Univ Life Sci, Dept Biotechnol & Food Microbiol, Ul Wojska Polskiego 48, PL-60627 Poznan, PolandPoznan Univ Life Sci, Dept Biotechnol & Food Microbiol, Ul Wojska Polskiego 48, PL-60627 Poznan, Poland
Kaczmarek, Paulina
Celinska, Ewelina
论文数: 0引用数: 0
h-index: 0
机构:
Poznan Univ Life Sci, Dept Biotechnol & Food Microbiol, Ul Wojska Polskiego 48, PL-60627 Poznan, PolandPoznan Univ Life Sci, Dept Biotechnol & Food Microbiol, Ul Wojska Polskiego 48, PL-60627 Poznan, Poland