Hazelnut skin powder: A new brown colored functional ingredient
Küçük Resim Yok
Tarih
2014
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Elsevier Science Bv
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
Hazelnut skin arises as a by-product in the roasting process of hazelnuts. This study aimed to investigate the potential of its utilization as a brown colored functional ingredient. Chemical composition analyses revealed that hazelnut skin is a very rich source of dietary fibers (67.7%) and phenolic compounds (233 mg GAE/g). Its oil fraction (14.5%) was found to contain very high amounts of tocopherols (2.77 mu g/g) and oleic acid (75.2%). After defatting, coarse and fine hazelnut skin powders were obtained by low and high shear homogenization. High shear homogenization was performed at different pressures (10, 20 and 30 ksi) for different pass cycles (1, 3, 5 and 10). The powder samples were analyzed for particle size distribution, color, individual phenolic compounds, total phenolic content, and total antioxidant capacity. A desirable low micron particle size for the hazelnut skin for incorporation into food formulations was achieved by means of high shear homogenization, meanwhile there was no significant change in phenolic composition and antioxidant capacity. (C) 2014 Elsevier Ltd. All rights reserved.
Açıklama
Advances in Pigments in Foods - Chemistry, Technology and Health, following Pigments in food Congress -- 2013 -- Novara, ITALY
Anahtar Kelimeler
Hazelnut skin, Brown powder, Dietary fiber, Phenolic compounds, High-shear homogenization
Kaynak
Food Research International
WoS Q Değeri
Q1
Scopus Q Değeri
Q1
Cilt
65