Characterization of Olive Oil By-products: Antioxidant Activity, Its Ability to Reduce Aflatoxigenic Fungi Hazard and Its Aflatoxins
Journal Title: Annual Research & Review in Biology - Year 2017, Vol 14, Issue 5
Abstract
The Aim: The aim of this study is to explore a new application for turning low value byproducts to value added bioactive components using a simple technique. Study Design: The large amounts of byproducts resulted had an environmentally harmful; the phenolic components were extracted using aqueous isopropanol from olive leaves and pomace. Place and Duration of Study: samples were analysed in laboratories of Fats and Oils Department, Toxicology and Food Contaminants; National Research Centre; and in Department of Food Technology, City of Scientific Research and Technological Application during season of 2016. Methodology: A novel extraction method was used to recover the remaining active components from olive processing wastes (OPWS) either from pomace or leaves. The oil residues re-extracted from dried pomace using n-hexane; collected as pomace olive oil. Results: Although the OPWS considered as a harmful environmental byproduct; OPWs extracts showed a highly contents of polyphenols along with antioxidant activity, the best results recorded in pomace olive extract (POE), it had a good character to reduce toxigenic fungal growth and mycotoxins. Antimicrobial property, MIC and MFC of polar and non-polar extracts were determined. Conclusions: It showed a better antimicrobial character in conformity with its total phenolics, total flavonoids and antioxidant activities. The olive pomace extract showed a high content of bioactive components. The extracts had anti-mycotic properties against 4 types of toxigenic fungi, and anti-mycotoxigenic characters that showed a high ability of the olive pomace extracts either on fungal inhibition or reducing aflatoxin ratio.
Authors and Affiliations
Adel G. Abdel-Razek, A. Noah Badr, Mohamed G. Shehata
Keywords
Related Articles
- EP ID EP313540
- DOI 10.9734/ARRB/2017/35065
- Views 91
- Downloads 0
Bacteriocins Contributing in Rhizospheric Competition among Fluorescent Pseudomonads
Aims: To examine the production of bacteriocins through the study of a group of rhizospheric Pseudomonas isolates already known to produce metabolites that are antagonistic to fungi. Methodology: Fourteen rhizospheric st...
Developmental Anatomic Studies on the Triceps brachii and Biceps brachii Muscles in Red Sokoto Goat (Capra hircus)
Objectives: Triceps brachii and biceps brachii are important muscles for animal’s functionality and useful to clinicians during intramuscular drug administration. This study investigated the gross, morphometric and histo...
Optimization of Somatic Embryogenesis in Ferula assa-foetida L. (a Rare Medicinal Plant)
Experiments was carried out to examine the effect of abscisic acid (ABA), source of carbon and temperature on secondary somatic embryogenesis and somatic embryo germination of Ferula assa-foetida L. Cotyledonary somatic...
Census and Population Dynamics of the White Stork Ciconia ciconia in Croatia in the years 2004/05
Aims: This study was carried out to determine the population dynamics of the White Stork Ciconia ciconia in Croatia and to compare it with that of neighbouring countries in Europe. Study Design: The study is based on th...
Characterization of anti-Listeria innocua. F Bacteriocins Produced by Lactococcus lactis ssp raffinolactis Isolated from Algerian Camel Milk
Aims: Our work is focused on the characterization of anti-Listeria innocua. F bacteriocins produced by lactic acid bacteria belonging to the genus Lactococcus isolated from camel milk. Methodology: We tested the bacteri...