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Title: Study on the mould-resistant properties of moso bamboo treated with high pressure and amylase
Author: Huang, Xiao-Dong; Hse, Chung-Yun; Shupe, Todd F.;
Source: BioResources. 9(1):497-509.
Publication Series: Scientific Journal (JRNL)
Description: Starch of moso bamboo mainly exists in the elongated parenchyma cells, and it is difficult for amylase to enter moso bamboo and dissolve the starch. Therefore, the mould resistance capability of moso bamboo's products cannot meet the need for bamboo to resist fungal decay. In this experiment, moso bamboo blocks were first treated at six levels of pressure and for six different treatment durations. The results showed that reducing sugar content was decreased dramatically from 0.92 mg/L to 0.19 mg/L and the starch content decreased from 1.18% to 0.96% when the pressure was increased from 0 psi to 100 psi. Regression analysis showed that the effects of an individual amylase reaction and individual Pressure treatment on the starch or reducing sugar content were significant with a high correlation coefficient. Three traditional types of moso bamboo moulds (Aspergillus niger, Penicillium citrinum, and richoderma viride) were then used for mould resistance testing. The results revealed that the mould resistance capability of moso bamboo blocks could be greatly improved by the combined effect of enzyme activity and pressure treatment. Mould resistance was enhanced by increasing the pressure or prolonging the treatment time. This research could provide a new method for the protection of bamboo from mould attack.
Keywords: Moso bamboo, starch, pressure, amylase treatment, mould resistance capability
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Huang, Xiao-Dong; Hse, Chung-Yun; Shupe, Todd F. 2014. Study on the mould-resistant properties of moso bamboo treated with high pressure and amylase. BioResources. 9(1):497-509. 13 p.
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