Please use this identifier to cite or link to this item: https://ir.swu.ac.th/jspui/handle/123456789/17254
ชื่อเรื่อง: Production of poly (l-lactide)-degrading enzyme by Actinomadura keratinilytica strain T16-1 under solid state fermentation using agricultural wastes as substrate
ผู้แต่ง: Krajangsang S.
Dechsresawut N.
Lomthong T.
Samaimai S.
Keywords: polylactide
Actinomadura
Actinomadura keratinilytica
agricultural waste
Article
bacterial strain
cassava
controlled study
enzyme activity
enzyme degradation
enzyme synthesis
high temperature
Lemna
moisture
nonhuman
plate count
powder
solid state fermentation
soybean meal
Streptomyces
Streptomyces olivaceus
submerged fermentation
surface area
weed control
วันที่เผยแพร่: 2021
บทคัดย่อ: Poly (l-lactide) (PLLA) is an aliphatic polyester that can be obtained from renewable resources and degraded by various microorganisms. In previous reports, Actinomadura keratinilytica strain T16-1 demonstrated high ability to degrade PLLA under various conditions. PLLA-degrading enzyme production under solid state fermentation has been sparsely studied. PLLA-degrading enzyme production by A. keratinilytica strain T16-1 was investigated using agricultural wastes as substrate under solid state fermentation (SSF). Three agricultural wastes as soybean meal, cassava chips and duckweed were tested as substrates for PLLA-degrading enzyme production by statistical methods using mixture design. Results revealed that using duckweed as the substrate gave the highest enzyme production (138.66 ± 13.57 U/g dry substrate). Maximum enzyme activity of 391.24 ± 15.57 U/g dry substrate was obtained under 10 g duckweed, 10% inoculum size, 7 days of cultivation time, pH 7.0, 2.8% PLLA powder, and 60% moisture content at 45 °C. It can be concluded that duckweed is an inexpensive substrate, which reduces the costs of PLLA-degrading enzyme production, as an alternative to effective water weed management. © 2021, King Abdulaziz City for Science and Technology.
URI: https://ir.swu.ac.th/jspui/handle/123456789/17254
https://www.scopus.com/inward/record.uri?eid=2-s2.0-85119969652&doi=10.1007%2fs13205-021-03060-8&partnerID=40&md5=05d5d695022c60504b4d9dd7d9d93ff7
ISSN: 2190572X
Appears in Collections:Scopus 1983-2021

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