4.7 Article

Integral use of pepper stems

期刊

INDUSTRIAL CROPS AND PRODUCTS
卷 40, 期 -, 页码 110-115

出版社

ELSEVIER
DOI: 10.1016/j.indcrop.2012.03.006

关键词

Lignin; Agricultural residues; Cellulose; Hemicelluloses; Paper

资金

  1. Spanish Ministry of Science and Innovation [JCI-2011-09399]

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Pepper stems were treated for its integral utilization. Characterization of original pepper stems (63.4% holocellulose, 23.3% hemicelluloses, 25.6% lignin) was done according to standards methods. In this work, the valorisation of these components was studied. Hemicelluloses fraction recovered from the hydrol-sated pepper stems presented xylose and glucose as the main simple sugars, representing 39% and 19.9% of total sugars content in the autohydrolysis hydrolysates and 59.8% and 16% in the acid hydrolysates respectively. Physical properties of paper sheets formed with soda pulp from pre-hydrolysated pepper stems were measured with high 76 degrees SR value, and cellulose and lignin fractions from pulp and black liquor were recovered respectively. Cellulose was characterized by ATR-IR to complete the chemical structure analysis. Lignin isolated from the liquid was submitted to ATR-IR, H-1 NMR. GPC and TGA in order to suggest suitable applications based on its physicochemical properties. (C) 2012 Elsevier B.V. All rights reserved.

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