The yield and quality of chitosan extracted from fungi grown on different growth media

D. C. Paul, Kalaivani K. Nadarajah, J. Kader

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1 Citation (Scopus)

Abstract

The yield, degree of deacetylation, average molecular weight and colour of chitosan extracted from three fungal isolates, Absidia sp. DR, Absidia sp. 2a1 and Rhizopus sp. grown on three different growth media (YPG [complex media], BG [semi-defined media], and TVB [defined medium]) were compared. Results show that fungi grown on YPG gave rise to higher yield of chitosan per biomass (10% to 18% for Absidia sp. and 11% to 16% for Rhizopus sp.) and a higher average molecular weight (2.370 × 105) as compared to BG (6.765 × 104) and TVB (7.366 × 104). Absidia sp. DR grown on YPG for 60 hours gave the highest yield (18.36% chitosan/biomass). The degree of deacetylation for chitosan was found to be highest when extracted from fungi grown on TVB (84.55%) followed by BG (83.79%) and YPG (82.56%). It was also observed that the lightness value of chitosan was highest for extracts from Rhizopus sp. grown on TVB medium.

Original languageEnglish
Pages (from-to)591-595
Number of pages5
JournalAsian Journal of Microbiology, Biotechnology and Environmental Sciences
Volume7
Issue number3
Publication statusPublished - 2005

Fingerprint

Absidia
Chitosan
Fungi
Rhizopus
fungus
Growth
Biomass
biomass
Molecular Weight
Color

Keywords

  • Absidia sp.
  • Complex and defined medium
  • Rhizopus sp. chitosan

ASJC Scopus subject areas

  • Biotechnology
  • Applied Microbiology and Biotechnology

Cite this

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title = "The yield and quality of chitosan extracted from fungi grown on different growth media",
abstract = "The yield, degree of deacetylation, average molecular weight and colour of chitosan extracted from three fungal isolates, Absidia sp. DR, Absidia sp. 2a1 and Rhizopus sp. grown on three different growth media (YPG [complex media], BG [semi-defined media], and TVB [defined medium]) were compared. Results show that fungi grown on YPG gave rise to higher yield of chitosan per biomass (10{\%} to 18{\%} for Absidia sp. and 11{\%} to 16{\%} for Rhizopus sp.) and a higher average molecular weight (2.370 × 105) as compared to BG (6.765 × 104) and TVB (7.366 × 104). Absidia sp. DR grown on YPG for 60 hours gave the highest yield (18.36{\%} chitosan/biomass). The degree of deacetylation for chitosan was found to be highest when extracted from fungi grown on TVB (84.55{\%}) followed by BG (83.79{\%}) and YPG (82.56{\%}). It was also observed that the lightness value of chitosan was highest for extracts from Rhizopus sp. grown on TVB medium.",
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author = "Paul, {D. C.} and {K. Nadarajah}, Kalaivani and J. Kader",
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AU - Paul, D. C.

AU - K. Nadarajah, Kalaivani

AU - Kader, J.

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N2 - The yield, degree of deacetylation, average molecular weight and colour of chitosan extracted from three fungal isolates, Absidia sp. DR, Absidia sp. 2a1 and Rhizopus sp. grown on three different growth media (YPG [complex media], BG [semi-defined media], and TVB [defined medium]) were compared. Results show that fungi grown on YPG gave rise to higher yield of chitosan per biomass (10% to 18% for Absidia sp. and 11% to 16% for Rhizopus sp.) and a higher average molecular weight (2.370 × 105) as compared to BG (6.765 × 104) and TVB (7.366 × 104). Absidia sp. DR grown on YPG for 60 hours gave the highest yield (18.36% chitosan/biomass). The degree of deacetylation for chitosan was found to be highest when extracted from fungi grown on TVB (84.55%) followed by BG (83.79%) and YPG (82.56%). It was also observed that the lightness value of chitosan was highest for extracts from Rhizopus sp. grown on TVB medium.

AB - The yield, degree of deacetylation, average molecular weight and colour of chitosan extracted from three fungal isolates, Absidia sp. DR, Absidia sp. 2a1 and Rhizopus sp. grown on three different growth media (YPG [complex media], BG [semi-defined media], and TVB [defined medium]) were compared. Results show that fungi grown on YPG gave rise to higher yield of chitosan per biomass (10% to 18% for Absidia sp. and 11% to 16% for Rhizopus sp.) and a higher average molecular weight (2.370 × 105) as compared to BG (6.765 × 104) and TVB (7.366 × 104). Absidia sp. DR grown on YPG for 60 hours gave the highest yield (18.36% chitosan/biomass). The degree of deacetylation for chitosan was found to be highest when extracted from fungi grown on TVB (84.55%) followed by BG (83.79%) and YPG (82.56%). It was also observed that the lightness value of chitosan was highest for extracts from Rhizopus sp. grown on TVB medium.

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