Granulometric fractionation and micronization: A process for increasing soluble dietary fiber content and improving technological and functional properties of olive pomace

被引：40

作者：

Speroni, Caroline Sefrin ^{[1
]}

Beutinger Bender, Ana Betine ^{[1
]}

Stiebe, Jessica ^{[1
]}

Ballus, Cristiano Augusto ^{[1
]}

Avila, Patricia Felix ^{[2
]}

Goldbeck, Rosana ^{[2
]}

Morisso, Fernando Dal Pont ^{[3
]}

da Silva, Leila Picolli ^{[4
]}

Emanuelli, Tatiana ^{[1
]}

机构：

[1] Univ Fed Santa Maria, Ctr Rural Sci, Dept Food Technol & Sci, BR-97105900 Santa Maria, RS, Brazil

[2] Univ Estadual Campinas, UNICAMP, Sch Food Engn, Monteiro Lobato St 80, BR-13083862 Campinas, SP, Brazil

[3] Feevale Univ, Inst Hlth Sci, BR-93510330 Novo Hamburgo, RS, Brazil

[4] Univ Fed Santa Maria, Ctr Rural Sci, Dept Anim Sci, BR-97105900 Santa Maria, RS, Brazil

来源：

LWT-FOOD SCIENCE AND TECHNOLOGY | 2020年 / 130卷

关键词：

Olive oil; Agro-industrial waste; Ball milling; Dietary fiber; Arbequina; PHYSICOCHEMICAL PROPERTIES; BY-PRODUCTS; CAPACITY;

D O I：

10.1016/j.lwt.2020.109526

中图分类号：

TS2 [食品工业];

学科分类号：

0832 ;

摘要：

The aim of this study was to evaluate the effect of micronization of granulometrically separated olive pomace fractions on dietary fiber composition, technological and functional properties. OP was separated in a 2-mm sieve, resulting in: F1 (> 2 mm) and F2 (< 2 mm). F2 had higher content of soluble dietary fiber than F1 and lower lignin content. F2 had higher water and oil holding capacities, solubility and cation exchange capacity than F1. The micronization of F1 and F2 fractions using a ball milling (300 r min(-1)/ 5 h) reduced the average particle size by 20 times yielding F1AG (17.8 mu m) and F2AG (15.6 mu m). Micronization caused a redistribution of fiber fractions (from insoluble to soluble), decreased lignin content and changed granule morphology. FT-IR spectra showed that micronization exposed some functional groups, which explains the changes in dietary fiber composition. Thus, micronization converts OP into novel powders bearing improved technological and functional properties.

引用

页数：7

共 36 条

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