Published September 1999 | Version v1
Journal article Metadata-only

Anti-fungal activity of irradiated chitosan

Creators

  • 1. Nuclear Research Inst., No.1 Nguyen Tu Luc, Dalat (Viet Nam)
  • 2. Takasaki Radiation Chemistry Research Establishment, Japan Atomic Energy Research Institute, Gunma (Japan)

Description

Anti-fungal activity of chitosan induced by irradiation has been investigated. Commercial chitosan samples of 8B (80% deacetylation) and l0B (99% deacetylation) were irradiated by γ-ray in dry condition. Highly deacethylated chitosan (10B) at low dose irradiation (75 kGy) was effective for inhibition of fungal growth. The sensitivities of Exobasidium vexans, Septoria chrysanthemum and Gibberella fujikuroi for the irradiated chitosan were different and the necessary concentrations of chitosan were 550, 350 and 250 μg/ml, respectively. For the plant growth, low deacethylation (chitosan 8B) and high dose (500 kGy) was effective and the growth of chrysanthemum was promoted by spraying the irradiated chitosan. (author)

Additional details

Publishing Information

Journal Title
Shokuhin Shosha
Journal Volume
34
Journal Issue
1-2
Journal Page Range
p. 43-46
ISSN
0387-1975

INIS

Country of Publication
Japan
Country of Input or Organization
Japan
INIS RN
31032518
Subject category
S60: APPLIED LIFE SCIENCES;
Descriptors DEI
CHITIN; DOSE-RESPONSE RELATIONSHIPS; FUNGI; GAMMA RADIATION; GLUCOSAMINE; INHIBITION; PLANT GROWTH; RADIATION EFFECTS; SENSITIVITY; TEA PLANTS
Descriptors DEC
AMINES; CARBOHYDRATES; ELECTROMAGNETIC RADIATION; GROWTH; HEXOSAMINES; HEXOSES; IONIZING RADIATIONS; MAGNOLIOPHYTA; MAGNOLIOPSIDA; MONOSACCHARIDES; MUCOPOLYSACCHARIDES; ORGANIC COMPOUNDS; PLANTS; POLYSACCHARIDES; RADIATIONS; SACCHARIDES

Optional Information

Notes
3 refs., 2 figs., 2 tabs.