Utilization of a Biodegradable Mulch Sheet Produced from Poly(Lactic Acid)/Ecoflex®/Modified Starch in Mandarin Orange Groves

被引：18

作者：

Tachibana, Yuya ^{[1
,2
]}

Maeda, Takuya ^{[1
]}

Ito, Osamu ^{[1
]}

Maeda, Yasukatsu ^{[1
]}

Kunioka, Masao ^{[2
]}

机构：

[1] Ind Technol Ctr Wakayama Prefecture, Wakayama 6496261, Japan

[2] Natl Inst Adv Ind Sci & Technol, Tsukuba, Ibaraki 3058565, Japan

来源：

INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES | 2009年 / 10卷 / 08期

关键词：

poly(lactic acid); modified starch; mulch sheet; mandarin orange; biodegradable materials; biomass carbon ratio; BIOBASED CONTENTS; COMPOSITES; CELLULOSE; POLYMERS; BLENDS;

D O I：

10.3390/ijms10083599

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

We have developed a mulch sheet made by inflation molding of PLA, Ecoflex (R) and modified starch, which all have different biodegradabilities. A field test of use as an agricultural mulch sheet for mandarin oranges was carried out over two years. The mechanical properties of the mulch sheet were weakened with time during the field test, but the quality of the mandarin oranges increased, a result of the controlled degradation of the sheet. The most degradable modified starch degraded first, allowing control of the moisture on the soil. Accelerator mass spectroscopy was used for evaluation of the biomass carbon ratio. The biomass carbon ratio decreased by degradation of the biobased materials, PLA and modified starch in the mulch sheet.

引用

页码：3599 / 3615

页数：17

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