✦ LIBER ✦

Acidic activation of cellulose and its esterification by long-chain fatty acid

✍ Scribed by G. Chauvelon; L. Saulnier; A. Buleon; J.-F. Thibault; C. Gourson; R. Benhaddou; R. Granet; P. Krausz

Publisher: John Wiley and Sons
Year: 1999
Tongue: English
Weight: 142 KB
Volume: 74
Category: Article
ISSN: 0021-8995
DOI: 10.1002/(sici)1097-4628(19991121)74:8<1933::aid-app7>3.0.co;2-k

No coin nor oath required. For personal study only.

✦ Synopsis

Cellulose-enriched residues from wheat bran can be transformed in bioplastics after esterification of the cellulose by lauroyl chloride. Before the esterification reaction, an activation step with a swelling of the sample in dilute acid and subsequent drying was required. This activation had a marked influence on the amount of esterified product and its degree of substitution. Using pure cellulose as well as cellulose-enriched agricultural residues, we have shown that the cellulose was totally recovered after this pretreatment and that partial hydrolysis of cellulose chains occurred during the drying step, which probably improved the accessibility to chemical reagents. The possible role of sulfuric acid as catalyst for the esterification reaction of the cellulose by lauroyl chloride was discussed.

📜 SIMILAR VOLUMES

Synthesis and characterization of long-c

Synthesis and characterization of long-chain fatty acid cellulose ester (FACE)

✍ Pinglang Wang; Bernard Y. Tao 📂 Article 📅 1994 🏛 John Wiley and Sons 🌐 English ⚖ 410 KB 👁 1 views

Differential absorption and esterificati

Differential absorption and esterification of dietary long-chain fatty acids by larvae of the dragonfly, Aeshna cyanea

✍ Gregor Kirfel; Hans Komnick 📂 Article 📅 1999 🏛 John Wiley and Sons 🌐 English ⚖ 181 KB

In order to evaluate whether dietary long-chain fatty acids were differentially absorbed, Aeshna cyanea larvae received 5 ml oral doses containing combinations of two radiolabeled fatty acids at nearly equal radioactive and nmolar concentrations: (1) 3 H-oleic and 14 C-palmitic acids; (2) 3 H-oleic

Stimulation of adipose differentiation r

Stimulation of adipose differentiation related protein (ADRP) expression in adipocyte precursors by long-chain fatty acids

✍ Jun Gao; Hong Ye; Ginette Serrero 📂 Article 📅 2000 🏛 John Wiley and Sons 🌐 English ⚖ 145 KB

Adipose differentiation related protein (ADRP) is a 50-kDa protein expressed in adipocytes and transcriptionally activated when adipocyte precursors differentiate into mature adipocytes. Recent experiments have demonstrated that ADRP is a fatty acid binding protein that specifically facilitates the

Integrated synthesis and extraction of s

Integrated synthesis and extraction of short-chain fatty acid esters by supercritical carbon dioxide

✍ Marta Lubary; Peter J. Jansens; Joop H. ter Horst; Gerard W. Hofland 📂 Article 📅 2009 🏛 American Institute of Chemical Engineers 🌐 English ⚖ 414 KB

Controlled heterogeneous modification of

Controlled heterogeneous modification of cellulose fibers with fatty acids: Effect of reaction conditions on the extent of esterification and fiber properties

✍ C. S. R. Freire; A. J. D. Silvestre; C. Pascoal Neto; M. N. Belgacem; A. Gandini 📂 Article 📅 2006 🏛 John Wiley and Sons 🌐 English ⚖ 362 KB 👁 2 views

Associations of long-chain polyunsaturat

Associations of long-chain polyunsaturated fatty acid concentrations with birth outcome in term Indian mothers and their neonates

✍ Anitha Kilari; Savita Mehendale; Kamini Dangat; Hemlata Pisal; Sadhana Joshi 📂 Article 📅 2010 🏛 John Wiley and Sons 🌐 English ⚖ 305 KB

## Abstract The purpose of this study was to examine the maternal and cord long‐chain polyunsaturated fatty acid (LCPUFA) concentrations and their associations with birth outcome in term deliveries. Pregnant women (__n__ = 253) delivering at term were divided into two groups based on their babies'