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RAVES FOR RASPBERRIES
In a national survey consumers picked raspberries
as their #2 fruit, just behind strawberries. Why? It's the uniquely
wonderful raspberry flavor: sweet, tart, and delicious. CLICK
HERE for information about our consumer study.
Raspberry
History
Raspberries can trace a long history dating back to prehistoric
times. Wild raspberries are thought to have originated in eastern
Asia, there are also varieties that are native to the Western Hemisphere.
The seeds of these raspberries were likely to have been carried
by travelers or birds and animals that came across the Bering Straight
during ancient times.
The spread of wild raspberries through the world seems to have occurred
via similar means. Many birds relish the raspberry and feed heavily
on them. Because the seeds are very tough they may pass through
the birds digestive tract essentially intact and are thus transported
and ‘seeded’. Numerous cultures throughout history have
harvested wild raspberries and other related berries as an important
food source and as a medicinal plant.
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There seems to be no written evidence that raspberries
were cultivated until after the dark ages in Europe with the first
written mention being found in a book on herbal medicine dated 1548.
Raspberries began to be grown more widely in Europe and North America
in the 19th century when many new varieties such as the loganberry
and boysenberry were developed through either accidental or intentional
crossbreeding. Currently, the leading commercial producers of raspberries
include United States, Poland, Germany, Yugoslavia and Chile.
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Medicinal Uses
The leaves can be used fresh or dried in herbal and medicinal teas.
They have an astringent flavour, and in herbal medicine are claimed
to be effective in regulating menses.
Health Benefits:
Red raspberry leaf tea has been used for hundreds of years by women
throughout their pregnancy to ease the labor pain, to avoid miscarriage,
and to improve the milk supply.
For more than 2,000 years, red raspberry was considered
a minor healer, beneath blackberry. In the 1940’s it emerged
from blackberry’s shadow and replaced it in herbal healing.
It became the herb for pregnant women.
Physicians prescribe a number of red raspberry preparations
for morning sickness, uterine irritability, and threatened miscarriage.
Red raspberry is also included in many herbal pregnancy blends in
the United States.
Red raspberry leaves contain tannins, which are astringent
and help explain its traditional use as a diarrhea treatment.
Raspberry tea is one of the best herbal teas for pregnancy:
to relieve nausea, prevent hemorrhage, reduce pain, and ease childbirth.
The leaves of raspberry is used fresh or dried as herbal
teas to regulate menstrual cycles and to decrease heavy menstrual
flow.
The fresh juice, mixed with little honey, makes an excellent
beverage, and has been taken to reduce fever.
Externally, because of its astringent qualities, raspberry
tea is used as a gargle, mouthwash for bleeding gums and other oral
inflammations. Raspberry tea may help relieve urinary irritation,
and sooth the kidneys and the entire urinary tract. Raspberries
may help normalize glucose levels and therefore may be helpful to
people with diabetes.
Raspberries contain an antioxidant ellagic acid ( one of the most
powerful anti-oxidants) which protects your cells from becoming
damaged and slows the growth of abnormal cells.
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Fun Facts
about Raspberries
- The raspberry (plural, raspberries) is the edible fruit of
a multitude of plant species in the subgenus Idaeobatus of the
genus Rubus; the name also applies to these plants themselves.
The name originally referred to the European species Rubus idaeus
(with red fruit) still used as its standard English name.
- Raspberries are widely grown in all temperate regions of the
world. There are dozens of hybrids available today in two different
types of growing habits. Floracane, they have a cane that grows
one year with no fruit and bears fruit the next year. Primocane
varieties produce a cane that bears fruit the same year. Many
of the red raspberry cultivars derive from hybrids between R.
idaeus and R. strigosus.
- The Red raspberry, black raspberry, purple-fruited raspberries,
yellow raspberries, all have a distinctive and rich flavor that
is so delicious, the fruit of royalty and the elite in times
past. Today raspberries are readily available all year long
but are often among the highest priced of small fruits.
- An individual raspberry weighs about 4 g, on average and is
made up of around 100 drupelets, each of which consists of a
juicy pulp and a single central seed. Raspberry bushes can yield
several hundred berries a year. Unlike blackberries and dewberries,
a raspberry has a hollow core once it is removed from the receptacle.
- A member of the rose family and a bramble fruit like the blackberry,
raspberries are delicately structured with a hollow core. Raspberries
are known as "aggregate fruits" since they are a compendium
of smaller seed-containing fruits, called drupelets, that are
arranged around a hollow central cavity.
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Health &
Nutrition Information
Raspberries contain significant amounts of polyphenol antioxidants
such as anthocyanin pigments linked to potential health protection
against several human diseases. The aggregate fruit structure contributes
to its nutritional value, as it increases the proportion of dietary
fiber, placing it among plant foods with the highest fiber contents
known, up to 20% fiber per total weight.
Raspberries are a rich source of vitamin C, with 30 mg per serving
of 1 cup (about 50% daily value), manganese (about 60% daily value)
and dietary fiber (30% daily value). Contents of B vitamins 1-3,
folic acid, magnesium, copper and iron are considerable in raspberries.
Raspberries rank near the top of all fruits for antioxidant strength,
particularly due to their dense contents of ellagic acid (from ellagotannins),
quercetin, gallic acid, anthocyanins, cyanidins, pelargonidins,
catechins, kaempferol and salicylic acid. Yellow raspberries and
others with pale-colored fruits are lower in anthocyanins.
Due to their rich contents of antioxidant vitamin C and the polyphenols
mentioned above, raspberries have an ORAC value (oxygen radical
absorbance capacity) of about 4900 per 100 grams, including them
among the top-ranked ORAC fruits. Cranberries and wild blueberries
have around 9000 ORAC units and apples average 2800.
The following anti-disease properties have been isolated in experimental
models. Although there are no clinical studies to date proving these
effects in humans, preliminary medical research shows likely benefit
of regularly consuming raspberries against:
• inflammation
• pain
• cancer
• cardiovascular disease
• diabetes
• allergies
• age-related cognitive decline
• degeneration of eyesight with aging
When asked to rank berries by their health benefits, raspberries
came in third, behind blueberries and cranberries – no surprise
since the nutrition benefits of those two berries have been bolstered
by significant nutrition research and years of consumer promotion.
Raspberries provide important health benefits. Raspberries rank
in the top 5 antioxidant-high fruits. Antioxidants are believed
to help prevent and repair oxidative stress, a process that damages
cells within the body and has been linked to the development of
cancer, heart disease, Alzheimer's disease and Parkinson's disease.
Raspberries are also high in ellagic acid, which may slow the
growth of certain cancer cells. Other raspberry benefits: One serving
of raspberries has only 70 calories but provides 50% of a day’s
requirement for vitamin C, 32% of fiber, 6% of folate, 6% of magnesium,
5% of potassium and 4% each of calcium, niacin, B6, phosphorus and
zinc . That 1 cup serving has only 1 gram of fat, no saturated or
transfats, no cholesterol and no sodium.
Research projects at key universities, including Tufts University,
the University of Toronto and the University of Montpellier, France,
are underway to determine more about the health benefits of red
raspberries.
Anthocyanins are found in fresh and frozen berries, but not in
processed foods.
A study published in the Journal of Agricultural and Food Chemistry
found anthocyanins were almost undetectable in canned foods, bread,
cereals, and baby foods containing berries, even in baby foods prepared
from fruits high in anthocyanins, such as blueberries.
This may be due to anthocyanins' unique chemical structure, which
renders them unstable even at a neutral pH and therefore much more
susceptible to destruction during processing than other phytonutrients,
such as proanthocyanidins. To give your children the full health
benefits of berries, purchase fresh or frozen berries and purée
them.
Nutrition Facts
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Raw Raspberries
Nutritional value per 100 g (3.5 oz)
Energy 60 kcal 260 kJ
Carbohydrates 14.7 g
- Sugars 5.4 g
- Dietary fibre 8 g
Fat.8 g
- saturated 0 g
- monounsaturated .1 g
- polyunsaturated .5 g
Protein 1.5 g
Vitamin A equiv. 1 µg 0%
- beta-carotene 120 µg 1%
Vitamin C 54 mg 90%
Calcium 3 mg 0%
Iron 5 mg 40%
Sodium 1 mg 0%
Percentages are relative to US
recommendations for adults.
Source: USDA Nutrient database |
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When Measuring Raspberries
1
quart = 2 pints = 1 1/2 pounds weight (aproximate, affected by berry
size and moisture)
1 small basket = 1 pint = 12 oz. weight (frequently grocers sell
½ pints, 6 oz.)
1 pint = 2 cups whole berries
1 cup = about 6 ounces weight
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Freezing Raspberries
This is the easiest, best tasting method and gives long
storage.
• Clean the berries, rinse and drain excess water. This
must be done gently, raspberries are the most delicate of all
small fruits. If you pick your own, keep them clean, its OK and
go straight to the container and to the freezer.
• Put in a bowl and sprinkle enough white sugar to lightly
coat the berries. Gently stir or fold until sugar make a light
glaze on the berries. Don't overdo this, just enough to spread
sugar around and coat the berries. This helps protect the flavor
during frozen storage. How much sugar? We like about 1/4 cup sugar
to 4 cups cleaned berries. More or less to your taste. Raspberries
are soft and can be frozen plain with no sugar but press down
and smash to remove all air in the container. A key point to remember,
air around the berries will allow "freezer burn". Freezer
burn is a combination of moisture loss and oxidation, nasty.
• Pack in your choice of freezer containers or bags. Here
is the key, get all the air out. Seal the container, remember
no air in the container only berries. Ziplock bags work great.
Better to ooze a little juice out as you close it than to leave
air in the bag. A neat method we have used is to use the plastic
foam type hot drink cups, just load them up and snap on the top
and in the freezer. A handy benefit later is just set the cup
out to thaw, use as needed and just toss the cup away, no muss
mess or cleanup, very nice.
• Colder is better in storage. Ten degrees below zero is
recommended.
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