Olive extracts may slow spoilage of meats

By Stephen Daniells

- Last updated on GMT

Related tags: Antioxidant

Polyphenol-rich extracts from olive oil pomace may reduce the formation of off-flavours in meats by as much as 80 per cent, suggests new research.

The olive extract, obtained from the waste waters of olive oil pomace, performed better than a commercial antioxidant sourced from wine, according to findings published in the journal Food Chemistry

“The polyphenol extract from the waste water of olive oil’s pomace significantly inhibited lipid oxidation in pre-cooked ground beef and pork. The antioxidant effect increased with the dose and was higher in beef than in pork,”​ wrote Sharon DeJong from Food Science Australia and Maria Cecilia Lanari from Argentina’s National Council for Scientific and Technical Investigation (CONICET).

Oxidation processes in food can lead to organoleptic deterioration in taste, colour and texture. The food industry has long been aware of this, and is increasingly seeking natural solutions rather than artificial additives, such as like butylhydroxyanisole (BHA) and butylhydroxytoluene (BHT), to extend the shelf life of milder-tasting products.

According to a 2003 report by Frost and Sullivan, the synthetic antioxidant market is in decline, while natural antioxidants, such as herb extracts, tocopherols (vitamin E) and ascorbates (vitamin C) are growing, pushed by consumer desire acceptance and easier market access.

The research taps into this trend, and found that hydroxy-tyrosol, caffeic acid and oleuropein were amongst the highest contributors to the antioxidant activity of the olive extract.

Tests were performed in both pre-cooked beef and pork, and the crude polyphenol extracts were added at a dose of either 50 or 100 mg gallic acid equivalents (GAE)/kg meat. Using the thiobarbituric acid-reactive substances (TBARS) assay to measure the degree of lipid oxidation, DeJong and Lanari report that that the olive extract reduced TBARS formation by between 63 and 83 per cent in the beef, and by between 47 and 66 per cent in the pork.

When compared to commercially available tea and wine extracts, the best performance was observed for tea, while the wine extract performed the least effectively.

The commercial wine extract was prepared by aqueous extraction of red grape (Vitis vinifera) skin, while the green tea extract was Polyphenon 30, manufactured by Mitsui Norin Ltd., Japan.

Source: Food Chemistry​Volume 116, Issue 4, Pages 892-897“Extracts of olive polyphenols improve lipid stability in cooked beef and pork: Contribution of individual phenolics to the antioxidant activity of the extract”​Authors: S. DeJong, M.C. Lanari

Related news

Show more

Related products

show more

Formulating meat and fish alternatives?

Formulating meat and fish alternatives?

Univar Solutions | 30-Nov-2021 | Product Brochure

Whether you are entering the plant-based industry as a new brand or looking to expand your existing line, turn your knowledge of plant-based foods into...

Formulating plant-based products?

Formulating plant-based products?

Univar Solutions | 30-Nov-2021 | Product Brochure

Join Univar Solutions for an inspirational and interactive session on key market opportunities and the Big Bets, top tips on how to achieve the successful...

Clean-label solutions for lasting food freshness

Clean-label solutions for lasting food freshness

Givaudan | 15-Nov-2021 | Insight Guide

Are you looking for natural solutions that effectively preserve your products throughout shelf life? Natural, fresh, colourful and tasty – all the attributes...

Create colorful products sustainably with EXBERRY®

Create colorful products sustainably with EXBERRY®

EXBERRY® by GNT | 04-Nov-2021 | Technical / White Paper

Environmental credentials are an increasingly important factor in food and drink products’ success. At GNT, we’re committed to driving industry standards...

Related suppliers

Follow us


View more