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Lignin and holocellulose from coir pith involved in trimethylamine(fishy odor) adsorption

Journal of Environmental Sciences 2019年第5期31卷 43-53页

作者： Nuttapong Santawee Chairat Treesubsuntorn Paitip Thiravetyan School of Bioresources and Technology King Mongkut's University of Technology Thonburi Pilot Plant Development and Training Institute King Mongkut's University of Technology Thonburi

Coir pith is a highly potential adsorbent for adsorbing trimethylamine(TMA). It harbors a higher adsorption capacity for TMA compared to commercial activated carbon(CAC). It was found that lignin and holocellulose extracted from coir pith played an important role in TMA adsorption. Lignin itself had the highest TMA adsorption capacity(269.01 mg/g)followed by holocellulose(75.43 mg/g), coir pith(14.3 mg/g) and CAC(10.26 mg/g),respectively. The pseudo-first-and second orders were applied to the kinetic data. For the adsorption of TMA by coir pith, the best fit was achieved by the pseudo-second *** studies showed an endothermic and physico-chemical adsorption process between TMA and the coir pith. TMA desorption study suggested that only 14%–47% of TMA was desorbed with distilled water. In addition, Fourier transform-infrared(FT-IR) spectra showed that C–H bond(methyl group), C–O bond from phenolic alcohol and C–O bond from tertiary alcohol in lignin and holocellulose were involved in TMA adsorption. Coir pithbased filter showed high TMA adsorption efficiency(98%) and kept constant for more than48 days in a continuous system. Pilot scale experiment, coir pith beads filter could be succesfully applied as a packing material for TMA removal. Therefore, coir pith can be used as a promising packing material for TMA treatment at contaminated site.

关键词： Trimethylamine(TMA) Fishy odor Lignin Coir pith Holocellulose

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Biochemical changes during composting of coir pith waste as influenced by different agro industrial wastes

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Agricultural Sciences 2013年第5期4卷 28-30页

作者： T. Muthurayar M. S. Dhanarajan Principal Jaya College Thiruninravoor Research Scholar Sathyabama University Chennai

Coir pith, a byproduct of coconut husk is difficult to decompose due to its high lignin and cellulose content. In this study, coir pith was composted with different agro industrial by products such as cow dung, vegetable market waste, poultry waste and microbial consortium. The different treatment combinations used in the present study were Control, T1 (Coir pith + Cow dung + Vegetable market waste + Poultry waste + mixed microbial culture (Trichoderma viridae + Pleurotus sajar caju), T2 (Coir pith + Vegetable market waste + Poultry waste + Tank slit + Mixed microbial culture) and T3 (Coir pith + Cow dung + poultry waste + tank slit + mixed microbial culture). At the end of 12th week, in the treatment T1, C: N ratio of 21.8:1 was observed in the composted coir pith sample. Highest P content of 0.47% and K content of 1.2% and the least Cellulose and Lignin contents of 22.8% and 10.03% were recorded in the T1 treatment after a composting period of 12 weeks. Highest pH of 7.4 was observed in the treatment T3, this was followed by T1 (7.2) treatment.

关键词： Coir pith Compost Agro Industrial Wastes C:N Ratio Trichoderma Viridae and Pleurotus Sajar Caju

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真假莎士比亚——关于是“pith”还是“pitch”的探讨

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抚州师专学报 1984年第2期 79-83页

作者：邵志洪

《哈姆雷特》是莎士比亚的代表作,剧中有许多处用了长段独白来表现主人公哈姆雷特的思想斗争。第三幕第一场中“To be,or not to be:…”这段关于生死问题的独白,通常被誉为“哲理性独白的名篇”,为世界各国人民传诵不辍。这段独白中第3... 详细信息

《哈姆雷特》是莎士比亚的代表作,剧中有许多处用了长段独白来表现主人公哈姆雷特的思想斗争。第三幕第一场中“To be,or not to be:…”这段关于生死问题的独白,通常被誉为“哲理性独白的名篇”,为世界各国人民传诵不辍。这段独白中第31行是:

关键词：莎士比亚哈姆雷特 pith pitch

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Interpretations of Rice Paper Watercolor Painting in Art Teaching

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Review of Educational Theory 2020年第1期3卷 62-66页

作者： Yifeng Qu Jianghan University Academy of Fine Arts WuhanHubei430056China

The ricepaperplant pith is also known as Tetrapanax papyrine,Akebia,or tall gastrodia fruit,a kind of shrub or small tree of the *** is native to south China and Taiwan Prov.,the raw material of rice *** its central tissue from the stem to make pith slices which could be made as the watercolor painting *** arose in Guangzhou in the 19th century,and the themes are mainly focused on reflecting the social life scenes as well as various characters in late Qing Dynasty,such as officials,soldiers,juggling,weaving,playing instrument,*** works are lively,vivid,and bright in *** the result of using western painting principles and reflecting Chinese local customs,rice paper watercolor paintings were admired by Westerners at that ***,as pith paper is fragile,the size of painting was usually small and difficult to conserve,there are few works handed down in *** recent years,the rice paper watercolor painting has attracted more and more concern,which is of great significance to the study of the development of early Western paintings in China.

关键词： Ricepaperplant pith National conditions Customs Development

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