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Dietary fibre concentrates produced from papaya by‐products for agroindustrial waste valorisation
Author(s) -
NietoCalvache Jhon Edinson,
de Escalada Pla Marina,
Gerschenson Lía Noemi
Publication year - 2019
Publication title -
international journal of food science and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.831
H-Index - 96
eISSN - 1365-2621
pISSN - 0950-5423
DOI - 10.1111/ijfs.13962
Subject(s) - pulp (tooth) , dehydration , chemistry , cellulose , starch , lignin , raw material , pulp and paper industry , valorisation , food science , polymer , polysaccharide , waste management , organic chemistry , biochemistry , medicine , pathology , engineering
Summary In this work, papaya agroindustrial wastes were treated with ethanol and subsequently dehydrated to produce pulp or peel dietary fibre concentrates ( DFC s). Hot air convection ( CV ) and microwave ( MW ) assisted dehydration were studied. The DFC s produced were mainly composed by cell wall polymers such as cellulose, lignin, proteins and non‐cellulosic carbohydrates. It was found that convective drying produced DFC s with lower uronic acid content than microwave drying. Besides, pulp DFC s dehydrated by MW presented higher values for hydration properties, compared to those reported in literature. Peel DFC s presented better antioxidant properties than those from the pulp. Use of peel tissue, as well as CV produced DFC s with higher values of glass transition temperature. The characteristics found in the DFC s allow concluding that these products may be added in a diverse range of food products, granting benefits that would normally be obtained using several additives.