Optimization of tannin isolation from acorn and application in leather processing
Küçük Resim Yok
Tarih
2014
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Elsevier
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
The aim of this work was to optimize the extraction parameters of tannins from the acorns and the tanning properties. Experiments were planned to evaluate the effect of solvent/feed ratio (20-100 ml/g), time (2-10 h) and solvent mixture ratio (methanol-water) (0-100%) on extraction yields, tannin contents and total tannin amounts. Valonea tannin obtained under optimum conditions was applied to leather tanning process where filling coefficient (%) and shrinkage temperature (T-s) of the leathers were examined. Optimum extraction parameters were elicited as 100 ml/g for solvent/feed ratio, 6 h of process duration and solvent mixture ratio of 62% methanol-38% water. The filling coefficient of the leathers tanned with extracted valonea (57.81%) and the shrinkage temperature (75.5 degrees C) was superior to the commercial valonea (52.83%, 73 degrees C) implying the significant impact of process optimization. The tanning properties of the extracted valonea were satisfactory for the vegetable tanning in leather industry. (C) 2013 Elsevier B.V. All rights reserved.
Açıklama
Anahtar Kelimeler
Leather, Acorn, Valonea tannin, Optimization, Box-Behnken design, Tanning
Kaynak
Industrial Crops and Products
WoS Q Değeri
Q1
Scopus Q Değeri
N/A
Cilt
53
