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VATIS Update Food Processing
is published 6 times a year to keep the readers up to date of most of the
relevant and latest technological developments and events in the field of
Food Processing. The Update is tailored to policy-makers, industries
and technology transfer intermediaries. |
Editorial Board
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Preservative-free jam |
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Makedoniki, a
Greece-based producer of jams and fruit preserves, opted for a
barrier container from RPC Bebo Nederland, The Netherlands, to
gain a competitive advantage by becoming the first in the
country to launch a preservative-free jam in plastics
packaging. RPC Bebo Nederland is the subsidiary of leading
European rigid plastics packaging group RPC. Preferring the
safety, light weight and cost efficiency of plastics over
glass, Makedoniki turned to RPC Bebo for its expertise in
multi-layer PP/EVOH/PP barrier construction, which provides a
long ambient shelf-life.
Additional
benefits are provided by a convenient re-closable lid and the
choice of a large 410 ml container size enables Makedoniki to
differentiate its new range from competitors on-shelf. The
container is also fully recyclable. Pasteurization of RPCs
multi-layer packaging and the use of a protective atmosphere
inside preserve the colour, taste and flavour of jams for a
long time. The company offers a variety of branded, private
label and food service solutions for the local market.
Source: www.plastemart.com
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Techniques to
extend sea bream shelf-life
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Researchers from Valencia Polytechnic University (UPV), Spain,
are developing new systems that improve the conservation of
vacuum-packed fresh and cooked sea bream fillets. The
still-experimental method comprises adding bioprotection
contents to the fillets. These consist of essential oils from
oregano and substances produced by lactic acid bacteria. The
bioprotection substances can be applied to sea bream fillets
through pulverization, immersing the fish in a watery solution
or even recurring to techniques like vacuum impregnation. An
expansion of gas is produced in its interior when subjecting a
food to a vacuum [process], although the cavities it contains
remain intact. When the vacuum is broken, the cavities are
forced to incorporate in their interior the medium that
surrounds it, in this case, the bioprotection substances,
explained Mr. Purificacion Garcia, one of the researchers. The
Department of Food Technology has expressed that the use of
these substances is in response to growing consumer concerns
like the suppression of food additives, for example, in favour
of natural products.
The research team is also working on improving the preparation
of sea bream fillets via vacuum frying, which has the
advantage of cooking at a lower temperature. This technology
conserves the foods original texture and protects its
organoleptic characteristics better, at the same time reducing
the substances produced by the oxidation process and extending
the products shelf-life. Though the food does not end up as
golden as traditional frying, it is healthier because it
contains less fat. Under this line of research, a team of
scientists led by Mr. Xavier Martinez has developed the
Gastrovac, an appliance for professionals which creates a
low-pressure atmosphere in a vacuum, thus improving the
results of traditional culinary techniques such as cooking,
frying, pickling and marinating.
Source:www.fis.com
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Mushroom extract as meat preservative
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An extract from the edible mushroom
Flammulina velutipes may prolong the shelf-life of tuna
meat while also stabilizing the colour of the meat, report
researchers from the Tokyo University of Marine Science and
Technology, Japan. Extracts from the fungi would extend
shelf-life by up to six days during cold storage, compared
with untreated meat. Since oxidative spoilage of the fish is
linked to colour, the extract was associated with improved
colour stability of the meat.
Led by Mr. Huynh Bao, researchers
formulated four preparations of minced tuna meat, containing
0, 1, 3 or 5 ml of mushroom extract per 100 g of meat. A
dose-dependent response was observed, with the tuna meats
shelf-life under ice storage being increased by 2, 4 and 6
days, respectively, compared with meat without the extract.
Furthermore, 5 ml of the mushroom extract was found to be more
effective than adding a vitamin C salt at a level of 500 ppm
or vitamin E at the same levels. Beneficial effects on the
colour of the meat were also identified, and linked to the
level of lipid oxidation and the formation of metmyoglobin in
the fish meat.
Source:www.ap-foodtechnology.com |
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