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Science/Tech
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Title: Preserving bread longer: A new edible film made with essential oils
Source: [None]
URL Source: [None]
Published: Jun 5, 2014
Author: staff
Post Date: 2014-06-05 08:47:15 by Tatarewicz
Keywords: None
Views: 20

ScienceDaily... Essential oils have boomed in popularity as more people seek out alternatives to replace their synthetic cleaning products, anti-mosquito sprays and medicines. Now scientists are tapping them as candidates to preserve food in a more consumer-friendly way. A study from ACS' Journal of Agricultural and Food Chemistry reports the development of new edible films containing oils from clove and oregano that preserve bread longer than commercial additives.

Nilda de F. F. Soares and colleagues note that the search for new ways to keep packaged food from spoiling has led some scientists to essential oils, which can keep bacteria and mold at bay. Oils from clove and oregano had already been incorporated into edible films. But scientists still needed to optimize the effectiveness of these films and test them under real-life conditions for other uses. So Soares's team decided to test how well different edible films with clove and oregano essential oils could maintain bread's freshness and see how they measured up against a commercial antimicrobial agent. Bread is a common staple around the world and is often kept fresh with calcium propionate. Though naturally occurring, some research suggesting negative side effects have tarnished its popularity.

The scientists bought preservative-free bread and placed slices in plastic bags with or without essential oil-infused edible films. To some slices, they added a commercial preservative containing calcium propionate. After 10 days, the latter additive lost its effectiveness, but the edible films made with small droplets of the oils continued to slow mold growth.

Story Source:

The above story is based on materials provided by American Chemical Society. Note: Materials may be edited for content and length.

Journal Reference:

Caio G. Otoni, Silvania F. O. Pontes, Eber A. A. Medeiros, Nilda de F. F. Soares. Edible Films from Methylcellulose and Nanoemulsions of Clove Bud (Syzygium aromaticum) and Oregano (Origanum vulgare) Essential Oils as Shelf Life Extenders for Sliced Bread. Journal of Agricultural and Food Chemistry, 2014; 62 (22): 5214 DOI: 10.1021/jf501055f

American Chemical Society. "Preserving bread longer: A new edible film made with essential oils." ScienceDaily. ScienceDaily, 4 June 2014. .

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