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Dairy ingredient:
preparation and use |
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Fonterra Co-operative Group, New Zealand, has
filed for a United States patent on a method for
producing a dairy powder or concentrate. The pH
of the liquid dairy starting material – comprising
casein and whey proteins – is adjusted if necessary
by addition of acid or alkali to a pH in the
range 5.0-8.0. The pH adjusted material is then
heat-treated to denature whey protein in the presence
of casein. This treated material is either
retained or dried to form a powder or concentrate.
The ingredient may be used for forming a product
such as a processed cheese, spread, yoghurt or
dairy dessert. In this process, the ingredient is
dissolved/suspended (if necessary) and its pH is
adjusted to 4.5-6.5. The material may then be
cooked to form a molten mass, which is then
cooled to form a milk protein gel.
Source: www.flexnews-food.com |
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Low-glycaemic palm sugar |
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Coconut Power, an organic evaporated palm sugar
from Navitas Naturals in the United States, is a
healthy new alternative sweetener that is lowglycaemic
and rich in nutrients. This new organic
product is made from the sweet juice of coconut
palm blossoms. The sweet nectar is harvested
by gently slicing the flower. Once collected, the
nectar is kettle-boiled into a thick caramel and
then ground into a fine brown crystal.
Navitas claim that Coconut Power is a pure cane
sugar alternative that is 100 per cent organic, unprocessed,
unfiltered, unbleached and contains
no preservatives. The product is naturally low on
the Glycemic Index (GI), with a rating of 35, which
is about half that of cane sugar (GI 68). Coconut
Power is especially high in amino acids, potassium,
magnesium, zinc and iron and is a good
natural source of the vitamins B1, B2, B3, B6
and C. Contact: Navitas Naturals, 9 Pamaron
Way, Suite J, Novato, CA 94949, United States
of America. Tel: +1 (888) 645 4282; Fax: +1 (415)
883 1083; E-mail: info@navitasnaturals.com.
Source:
www.npicentre.com
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Modified starch as fat replacer |
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Studies have found that the calorie-content of
yoghurt could be reduced by more than 50 per
cent using Etenia, an ingredient developed by
Avebe Group. In the Netherlands, researchers
from NIZO Food Research BV, DSM Food Specialties
and the Avebe Food Innovation Centre,
independently tested the quality and functionality
of Etenia. The researchers investigated the perception
of creaminess in yoghurts formulated with
the ingredient in order to reduce the fat content
of the final product.
Mr. Arno Alting from NIZO food research, the lead
author of the study, said that the ingredient “is a
serious candidate for fat replacement.” Etenia,
derived from potato starch, may be labelled as ‘starch’ rather than ‘modified starch’, meeting
clean label requirements that are being put in
place by manufacturers and retailers. Etenia is
said to have both gelling and thickening properties.
Moreover, it has some of the same properties as
gelatine, the most common gelling agent, but is
vegetarian.
The researchers formulated a low-fat yoghurt with
amylomaltase-treated starch (ATS) ingredient.
The low-fat yoghurt, containing 1.5 per cent fat,
was found to have the same perceived creaminess
as full-fat yoghurt with a fat content of 5 per
cent. Moreover, in yoghurts with a fat content of
3 per cent, the ATS was found to be “four times
as effective as maltodextrin,” which is a current
fat replacer in set-style yoghurt. “The perceived
creaminess resulted from in-mouth melting of
these ATS domains owing to a combined effect
of their physical melting and hydrolysis by amylase
present in the saliva,” the researchers have
reported.
Mr. Alting and colleagues say that the energy
value of the resulting low-fat yoghurt would also
be about half that of the higher-fat yoghurt, since
polysaccharides have a lower energy value than
fats. Assuming a conversion factor for fat of nine,
compared with four for polysaccharides, they
calculated that “replacing 3.5 per cent fat in a 5
per cent fat-yoghurt with 2 per cent ATS will result
in a reduction of the fat-related energy value from
45 to 21.5 kcal/100 g”. The ingredient could be
used in different yoghurt types.
Source:
www.ap-foodtechnology.com
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Chitosan and lecithin combo
as nano-encapsulator |
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The Combining chitosan and modified lecithin could
offer interesting nano-encapsulators for a variety
of ingredients, according to a new study from
Japan. The spontaneous self-assembly of the
ingredients into stable nanoparticles was investigated
and encapsulation of ingredients was found
to be as much as 63 per cent in some cases.
The study by scientists from University of Tsukuba
and National Food Research Institute looked at
the formation of nanoparticles through the selfassembly
of modified lecithin and chitosan. It
produced nanoparticles that ranged in size from
123 to 350 nm. The particles “exhibited excellent
stability at over an extended pH (3 to 6) and ionic
strength range,” report the researchers.
Dextran-fluorescein isothiocyanate, bovine serum
albumin and Coomassie brilliant blue were used
as model compounds to test the ability of the selfassembled
nanoparticles to encapsulate ingredients
with no charge (non-ionic), or a positive and
negative charge, respectively. Encapsulation efficiency
ranged from 8.7 to 62.7 per cent. Model
water-soluble compounds could be entrapped
within the nanoparticles at fairly good efficiency,
the scientists noted.
Source:
www.beveragedaily.com
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Pre-biotic potential of
enzyme-converted durum wheat |
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Researchers from the Universities in Reading,
Naples and Barcelona have reported that treating
the insoluble cereal fibre with Trichoderma enzymes
produced soluble feruloyl oligosaccharides,
which displayed bifidobacteria and lactobacilliboosting
properties when tested in a model gut
system. If human studies confirm the pre-biotic
potential of the new fibres, it could see the soluble
feruloyl oligosaccharides from durum wheat
joining the growing list of pre-biotic ingredients.
The scientists treated durum wheat fibre (DWF)
with Trichoderma harzianum strain 22. This produced
soluble feruloyl oligosaccharides. These
soluble fibres were then tested in a model gut
system, which mimics the microbial environment
of the human colon. Results showed that the
enzyme-treated DWF (ET-DWF) did stimulate
the growth of bifidobacteria and lactobacilli. No
effect on short-chain fatty acids formation was
recorded by the researchers.
Website:
www.nutra ingredients.com
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Natural ingredient that
can boost metabolic health |
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Prof. Michael Zemel, Director of the University of
Tennessee Nutrition Institute, the United States,
has invented Innutria, an all-natural ingredient that
he says will help make people less efficient at
storing fat while giving a boost to metabolic and
cardiovascular health. “It is true we can do that
by eating a really good diet all the time, but we
are creating an alternative for the 90-plus per
cent of individuals who don’t do that, said Prof.
Zemel.
Prof. Zemel plans to market the ingredient to food
and beverage companies through Nutraceutical
Discoveries Inc., a licensee of the University of
Tennessee Research Foundation. He expects to
develop a family of Innutria products aimed at
different markets like men’s and women’s health,
weight loss and active living. The business is
targeting such beverages as water and teas, as
well as foods like oatmeal and beans. “We want
to put it in better-for-you foods. We want ‘powered
by Innutria’ label to mean something,” said Prof.
Zemel.
Website:
www.knoxnews.com
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Heat-stable flavouring
compositions |
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Quest International Services B.V., the Netherlands,
has applied for a United States patent on
particulate flavouring compositions having, based
on the total weight of the composition, 0.1-40 wt
per cent of flavouring substances, 10-90 wt per
cent of hydrocolloids and 0.1-50 wt per cent of
a lipid material having a melting point above 75º
C. These flavouring compositions are claimed to
be particularly suitable for application in food and
beverages, as well as in confectionery products
such as chewing gum. Other aspects of the invention
relate to a method of producing a particulate
flavouring composition, to a food product containing
such a flavouring composition and to a
process of manufacturing a reconstitutable food
product.
Source:
www.flex-news-food.com
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