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dc.contributor.authorYang, Qiulin
dc.contributor.authorShi, Jianbin
dc.contributor.authorLin, Lu
dc.contributor.author林鹿
dc.contributor.authorZhuang, Junping
dc.contributor.authorPang, Chunsheng
dc.contributor.authorXie, Tujun
dc.contributor.authorLiu, Ying
dc.date.accessioned2013-04-03T01:39:11Z
dc.date.available2013-04-03T01:39:11Z
dc.date.issued2012-05-09
dc.identifier.citationJOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY,2012,60(18):4656-4661zh_CN
dc.identifier.issn0021-8561
dc.identifier.urihttp://dx.doi.org/10.1021/jf3008663
dc.identifier.uriWOS:000303696000030
dc.identifier.urihttps://dspace.xmu.edu.cn/handle/2288/15464
dc.description.abstractA novel, efficient, and environmentally friendly technology is used in cornstalk cooking, active oxygen (O-2 and H2O2) cooking with solid alkali (MgO). After the cooking, the milled wood lignin in the raw material and pulp and the water-soluble and insoluble lignin in the yellow liquor were all characterized by attenuated total reflectance Fourier transform infrared spectroscopy and two-dimensional heteronuclear single-quantum coherence NMR. The results showed that the cooking procedure with solid alkali and active oxygen had a high selectivity for delignification, which could remove 85.5% of the lignin from the raw material. The syringyl (S/S'/S') units could be dissolved preferentially because of their high reactivity, and a novel guaiacyl unit with a carbonyl group (G') was generated in the cooking process. Moreover, during the cooking, the beta-O-4' (A/A'/A '') structures as the main side-chain linkages in all the lignins could be partly broken and the beta-O-4' (A') with a ring-conjugated structure was readily attacked by oxygen, whereas the H unit and beta-S' and beta-beta' structures were found to stay stable without characteristic reaction.zh_CN
dc.description.sponsorshipMinistry of Science and Technology of China [2010CB732201]; Natural Science Foundation of China [U0733001, 21106121]; Basic Research Foundation for Central Universities from Ministry of Education [2010121077]; Foundation of Scientific Research Universities from Department of Economy and Commerical of Fujian Province of China [1270-K42004]zh_CN
dc.language.isoenzh_CN
dc.publisherAMER CHEMICAL SOCzh_CN
dc.subjectsolid alkalizh_CN
dc.subjectactive oxygenzh_CN
dc.subjectcornstalkzh_CN
dc.subjectligninzh_CN
dc.titleStructural Characterization of Lignin in the Process of Cooking of Cornstalk with Solid Alkali and Active Oxygenzh_CN
dc.typeArticlezh_CN


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