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| In the early part of the
citrus season, a Navel Orange may be “mature” and
sweet, but green. Ethylene helps to “degreen” the
fruit, making the Orange…orange. |
NAVEL ORANGES (Monday, November 14): Ethylene
is a naturally occurring ripening gas. As some fruits and vegetables
mature, they produce this growth hormone, ethylene, which continues
the ripening process. Without ethylene, some items, such as bananas,
would never ripen. The produce industry uses ethylene to start the
ripening process. Bananas, for example, are picked fully mature,
but before they are mature enough to produce their own ethylene,
which would allow them to start ripening on their own. After their
journey from Central or South America to North America, they are
placed in special rooms, which are then filled with ethylene to
trigger the ripening process. The rooms are then aired out and the
bananas sold, but they continue to ripen themselves by producing
their own ethylene gas, going from the unripe green stages to the
ready-to-eat yellow stage. Some tomatoes also are picked fully mature,
but before they are mature enough to produce their own ethylene,
and they are treated the same way bananas are. Same with Avocados
and Kiwifruit. Early citrus still has some green on the skin, so
ethylene kills the chlorophyll cells, allowing the orange color
to come out in the skin. We call this process “degreening.”
The word degreening simply means to get rid of the green color.
As much as this procedure is simple in its basis and principles,
it is also complicated in its application.
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A LITTLE SCIENCE
Here’s the scientific equation for Ethylene. Rearrange
the Hydrogens and the Carbons, and you’ll have polyethylene,
plastic that we use for bags and soda bottles. Substitute a
Chloride for one of the Hydrogens, and you’ll have vinyl
chloride, from which we get PVC pipe. |
In the very beginning of the season, some Navel oranges reach good
pleasant taste but they are still green. The green color is not
attractive to the consumers. This is because consumers know that
green oranges are mostly immature. In order to convince consumers
at that early time that there are tasty Navel oranges, the color
must be changed from green to orange. This is done by degreening
them. To understand the difference, we must know first why the Navel
turns in the nature from green to orange color. In simple words,
the weather is the cause. There are some optimum weather conditions
that cause the ignition of the coloration. But these most favorable
weather conditions are present in the nature for only few hours
during the day. This is why on the trees, the Navel orange turns
from green to orange color very slowly in a month and more. In the
degreening process, these most favorable weather conditions for
natural coloration are kept 24 hours per day. When the Navel oranges
are exposed all the time to these best weather conditions, they
naturally turn their color from green color to orange color within
few days. Degreening rooms are the equipment used for the process.
These rooms are totally insulated from the outside world. Green
Navel oranges are stacked in these rooms. Parameters of the optimum
weather conditions for turning the color from green to orange are
then regulated, kept, and monitored around the clock.The main parameters
are Temperature, Humidity, Oxygen level, Carbon dioxide level (CO2),
and of course, the Ethylene level. The idea is that we can make
the color of the fruit attractive to the consumer by degreening
it but we can do nothing about the taste. This is why, we never
start the degreening season before we make sure that the taste is
good. This is done in laboratories by analysis called maturity tests.
When the analysis shows that the fruits of a certain field have
reached the permissible maturity index (sugar levels), we can start
the degreening process at once. If the fruits of another field do
not reach the satisfying maturity index, the degreening process
of this field is postponed until it gets the right maturity state.
Sometimes, you may get some dark green spots on the peel. This is
called oleocellosis. The green fruit peel is very sensitive to the
shocks. The least friction or shock make a rupture in the peel.
Usually, this is caused when the pickers pick wet fruit. The peel
is all puffy from the moisture, so the picker’s grip will
injure the peel. This injury spreads and makes a spot that does
not degreen in the degreening room. The result is ugly blemished
peel, but that does not affect the eating quality of that orange.
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Growers in the Lone Star
State have a Grapefruit worthy of their 10-gallon hat:
Rio Red Star |
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| Red Grapefruit from Texas
is some of the healthiest, according to researchers. |
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| Harvest is in full swing
for the winter crop of Texas Grapefruit. |
TEXAS
GRAPEFRUIT (Tuesday, November15): In 1982, temperatures
in the Rio Grande Valley dipped to the low 20s, and stayed there
for several hours. And this went on for several days. Most citrus
can withstand freezing temperatures, down to around 28 degrees for
just an hour or so. But this deep freeze just didn’t want
to stop until the entire citrus crop was lost. That’s right,
100% of the Texas grapefruit crop was wiped out. About 5 years later,
Texas growers were just getting back into the saddle, ready to harvest
their very first crop in half a decade. Mother Nature then turned
a cruel cold shoulder to Texas grapefruit growers. Another deep
freeze. Another 100% wipeout of the Texas grapefruit crop. Mother
Nature, more than anything else, determines what we buy in the produce
department, its quality and how much we pay for it. For more than
a decade, Texas didn’t sell one single grapefruit. But they
weren’t just sitting around, waiting for their new trees to
mature. They were busy developing the next generation of red grapefruit.
When Texas grapefruit growers finally got back into the saddle in
the early 1990s, they brought with them one of today’s most
popular grapefruits, the Texas Rio Red Star, the reddest grapefruit
on earth. The National
Cancer Institute placed grapefruit on their list of cancer preventative
foods. Lose weight. Help lower your cholesterol and your blood pressure.
Feel great. Just 2 servings of Grapefruit or juice a day. The Grapefruit
Diet used to be called a “fad” diet, but a major weight
loss center that's part of a prestigious East Coast University has
released the results of their study incorporating Grapefruit as
a part of your diet. You're going to love how the results make you
look and feel. In 13 weeks, participants in the study lost an average
of 19 pounds. They also significantly lowered their cholesterol
and blood pressure. All this simply by following the low-fat eating
plan which includes 2 servings of fresh Florida grapefruit or Florida
grapefruit juice each day. Both the fresh fruit and the juice are
satisfying and filling, yet have no fat, no cholesterol and no refined
sugar. They're also high in important vitamins, and fresh Florida
grapefruit is an excellent source of fiber.As part of a healthy
diet, Texas red grapefruit offers many potential benefits to the
human body. Texas grapefruit is an excellent source of Vitamin C
and a good source of Vitamin A and dietary fiber. One half of a
medium Texas grapefruit contains 60 calories and provides 110% of
the Daily Value for Vitamin C. Texas grapefruit does not have any
fat, sodium and cholesterol. But there is more. The next time you
eat a sweet, juicy Texas grapefruit, you'll also be consuming a
variety of nutrients you may not have realized. These nutrients
are called phytochemicals. They are found naturally in Texas grapefruit
and many have been linked to the prevention of certain cancers.
One of these phytochemicals is called lycopene. Some animal studies
have shown lycopene to reduce the risk of prostate, breast, cervical
and colon cancer. Studies by Dr. Steve Clinton at the Harvard School
of Public Health have shown that when lycopene is found in high
concentrations in the human prostate it significantly reduces the
risk of prostate cancer. Texas red grapefruit contains several phytochemicals,
including lycopene, beta-carotene, limonoid glucosides, naringin
and vitamin-C. The Texas
A&M University-Kingsville (TAMUK) Citrus Center scientist,
Dr. Bhimu Patil, says the levels of these five phytochemicals are
higher in the Rio Red Grapefruit, grown in South Texas, than other
pink and white varieties grown elsewhere. Among different grapefruit
varieties, Rio Red is gaining consumer acceptance because of its
deep red color, sweet flavor, texture and quality of the fruit.
You can find both the Texas Rio Red and Star Ruby varieties marketed
in local grocery stores under the name Rio Star Grapefruit. Dr.
Leonard Pike, Director of the Vegetable
& Fruit Improvement Center at Texas
A&M University, College Station, Texas, knows a thing or
two about lycopene and it's presence in Texas red grapefruit. After
a 2 year study, he discovered red varieties like the Texas Rio Red
and Texas Star Ruby had significantly higher levels of lycopene
and total carotenoids, limonoid glucosides, flavonones and vitamin
C than the non-Texas white fleshed varieties like the Duncan and
Marsh. TAMU researchers continue to study lycopene in Texas grapefruit,
hoping to learn what genetic and environmental factors play a role
in nutrient content and looking for ways to increase the amount
of this cartenoid. Carotenoids are powerful anti-oxidants, making
up the pigments in plants, giving foods such as grapefruit, watermelon,
tomatoes and sweet potatoes their bright red colors. Additional
health benefits may also be found in Texas grapefruit, including
pectin. Pectin, or dietary fiber, is a phytochemical that has been
shown in cell culture and animal studies to lower blood cholesterol
and protect arteries from clogging with plaque. Dietary fiber has
also been shown to aid in the prevention of cancerous tumors and
improve the body's ability to control blood sugar. For years grapefruit
has been promoted as a healthy fruit. Now with support from the
National Cancer Institute and research from clinical scientists,
a comprehensive analysis of grapefruit's nutrients and its benefits
to the human body are well underway. Dr. Patil says that although
research is beneficial, consumer demand also plays a factor. One
of the most important considerations is that consumers enjoy eating
red grapefruit and that they acknowledge its inclusion into a healthy
diet.
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The Holiday Red Grape
has a very large
berry size. |
HOLIDAY RED GRAPES (Wednesday, November 16): Here
is a wlcomed newcomer to the grape vineyard, similar to the Christmas
Rose seedless red grape. The Holiday Red Grape has a very large
berry size, about the size of your thumb. It tends to have a thinner
skin than some other seedless varieites. They are very juicy with
excellent flavor. The Holiday Red Grape is an exlusive grape, grown
by one grower. Columbine grapes have been produced exclusively by
the Caratan family for three generations. To merit the Columbine
label, all grape varieties are carefully hand-selected from vines
of varying ages at the precise peak of their maturity. All Columbine
grapevines are sustained by water-conserving drip irrigation. The
grapes are hand-picked and hand-packed by workers that return for
the harvest year after year. These workers are trained to select
the sweetest and most flavorful berries our vines produce. They
take pride in handling the fruit with care from picking to shipping
to market in refrigerated containers. Marin Caratan spent his entire
life pursuing his one true passion - the production of delicious,
fine quality table grapes. Born November 18, 1883, Marin grew up
with dreams of immigrating to the United States. At the age of 30,
he voyaged to America, settled in San Francisco and began farming
crops to earn his living. Six years later Marin had saved enough
money to purchase land in California's fertile southern San Joaquin
Valley, on which he could grow his own crops - grapes, specifically.
He settled in Delano, where today the third and fourth generations
of the Caratan family continue to cultivate his original vineyard,
as well as those acquired in the years since. Marin's children Ina,
Luis and Milan grew up in the vineyards. Marin shared his craft
with his sons, teaching them his proven techniques and encouraging
them to develop their own skills not only in farming, but business
and marketing as well. As Luis and Milan came of age, they honored
their father by transitioning into management and, ultimately, control
of the company, known then as M. Caratan Inc., prior to Marin's
death in 1979.
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| The Jonagold: Sweet but
a hint of Tartness |
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| Apples bruise so easily
for the same reason they float…air! |
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| The Cameo: The newer kid
on the block. |
CAMEO, JONAGOLD APPLES (Thursday, November 17):
Here’s another success story from New York. The Jonagold.
Scientists at the Geneva Agriculture Experimental Station crossed
a mild Golden Delicious with the tart Jonathan, coming up with one
terrific apple. The combination in this apple makes it honey sweet,
with just a slight touch of tartness. It’s a great apple for
simply eating, in salads or baked. In fact, here’s a great
treat: Fried Jonagolds. Simply sauté with a little butter
and cinnamon. Oh, my what a treat. This time of year, with a lot
of different varieties being harvest, make sure you try a new variety.
There is more to the world of apples than just Red, Gold and Green.
By the way, this is National School Lunch Week, so make sure your
kids or grandkids are eating their apples. Take them to the store
or the farmer’s market and have them pick out the “apple
of the week” for your family. Be sure to ask for a sample
of the Jonagold. Another apple variety popping up in the produce
department is the Cameo. Formerly known as Carousel, the Cameo popped
up in a Red and Golden Delicious orchard in 1987 in Washington State.
Cameo’s attractive red stripy skin covers delicious crunchy
sweet-tart flesh. It is shaped like a Red Delicious but without
the bumps on the bottom. Cameo is an excellent all-purpose eating
and cooking apple that keeps very well in storage. Apples, by the
way, will bruise very easily. You could hold an apple just 5 inches
above the table, then drop it. It will bruise. Why does the apple
bruise so easily? Perhaps bobbing for apples would give you a clue.
You’ve bobbed for apples, haven’t you? The apples float.
They don’t sink. They bob in the water. Does that give you
a clue yet? Let’s have a crash course in Physics. Apples have
density that is mass divided by volume. Confused yet? Knowing the
meaning of the terms might help. Mass is a property of matter and
is not the same as weight, although it is related. Mass is not dependent
on gravity and is a measure of an object’s resistance to changes
in either speed or direction of its motion. Volume is the amount
of space occupied by a three dimensional object and density is calculated
under specific conditions of pressure and temperature. The apple
‘bobs’ when its average density is the same as the average
density of the air and water it displaces. How can an apple have
the same average density as air. Air pockets. In the apple. That’s
what makes them float. And those air pockets are easily broken when
the fruit is dropped, causing a bruise. Treat your apples very gently.
They may have a rough, tough exterior, but inside, the apple is
very sensitive. Just like men. Don’t bruise your apples, and
don’t bruise your man.
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| This tiny apple is called
a Crimson Gold, and is quite a treasure. |
CRIMSON GOLD APPLE (Friday, November 18): This
variety of apple is a descendent of the Newtown and Spitzenburg
heirloom apples. These apples are grown near a National Forest in
Cuyama Valley near Santa Barbara, California. Growing in this remote
location provides ideal conditions: warm days and cool nights, producing
an optimal sugar/acid balance and a firmness in the apples. They
look a large crab apple. They are very crisp. Crimson Gold Apples
should have smooth, firm, unbroken surfaces free of bruises and
blemishes. Some apples may have a brownish freckled surface on their
skin, usually caused by weather, but their flavor is unaffected.
To keep apples crisp, store refrigerated, in a plastic bag (to retain
moisture). Albert Etter of Ettersburg created many wonderful heirloom
apples, including this Crimson Gold. As a boy growing up on a farm
near Ferndale CA, Etter displayed a precocious talent for horticultural
experimentation. He combined aptitude with vision at an early age,
making his life goal the creation of a new fruit varieties uniquely
suited for California and the Pacific Northwest. While still in
his late teens, Albert had the enormous good fortune to stumble
onto the piece of land that was to become his ranch and experiment
station. The young Etter discovered this bench of forest land above
Bear Creek during a fishing trip up the Mattole River Valley. Rugged
and remote, the parcel was available for free through the Homestead
Act. In 1894 at the age of 22, Albert was able to take possession
of the dream place he came to call Ettersburg. Clearing and improving
the land was a formidable task, but he was helped in the work by
several of his brothers who homesteaded adjacent parcels. Etter
was a remarkably systematic worker with an ambitious agenda. His
apple program began with his growing out a grid of seedlings to
serve as understocks. By 1900, he was ready to top-work these trees
to several hundred varieties obtained through the new University
of California Extension Service. The goal of this trial was to identify
varieties that had desirable qualities needed as parents for subsequent
breeding experiments. Etter eventually made thousands of crosses,
grew out rows of the resulting seedlings, and then grafted wood
from these onto his understock trees. Etter thought the Crimson
Gold had exceptional culinary value: it could withstand lengthy
boiling without losing its structural integrity. While this is a
fact, I also regard Crimson Gold as an extraordinary eating and
juicing apple. It ripens a bit later than Wickson (late October
to November) and retains its quality longer. It is also substantially
larger. As its name suggests, this is an attractive fruit, red-flushed
over cream color covered with a plum-like bloom. Etter originally
called it "Little Rosybloom". Crimson Gold was the subject
of mystery for some time. The seventh and last of the Etter apples
to be introduced, the paperwork with the U.S. Patent Office was
never finalized - for reasons that remain unclear. Although the
apple and its paperwork got lost, the variety grown and distributed
by the U.S. Germplasm Repository at Geneva NY under the name "Crimson
Gold.” Etter died in 1950 and his experimental orchard began
to deteriorate. After years of exploring the remnants of the Ettersburg
test orchard, we had just about given up on ever finding this variety.
Then, one wintry afternoon while climbing in the top of yet another
multi-grafted test tree, a single live limb of the true Crimson
Gold was discovered - complete with tarnished zinc label blending
into the gray bark. Returning the next fall in hope of checking
the fruit, sure enough - there was our elusive little apple. We
boiled it for a couple hours to confirm our judgment: solid and
golden as a cling peach.........This is an outstanding fruit that
should not be lost ever again.
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