Cucumber plants naturally thrive in both temperate and tropical environments, and generally require temperatures between 60-90°F/15-33°C. For this reason, they are native to many regions of the world. In evolutionary terms, the first cucumbers were likely to have originated in Western Asia (and perhaps more specifically in India) or parts of the Middle East. Cucumbers are mentioned in the legend of Gilgamesh--a Uruk king who lived around 2500 BC in what is now Iraq and Kuwait. It was approximately 3,300 years later when cucumber cultivation spread to parts of Europe, including France. And it was not until the time of the European colonists that cucumbers finally appeared in North America in the 1500's.
Today, the states of Florida and California are able to provide U.S. consumers with fresh cucumbers for most of the year (from March through November). Imported cucumbers from Mexico are commonly found in groceries during the winter months of December, January, and February. In California alone, about 6,600 acres are planted with slicing cucumber varieties and 4,400 with pickling cucumbers. Worldwide, China is by far the largest producer of cucumbers, and
provides about two-thirds of the global supply. Iran, Turkey, Russia, Egypt, Spain, Mexico, the Ukraine, Japan, Indonesia, and the U.S. all participate in the world cucumber market, with an especially high number of exports coming from Iran, Mexico, and Spain. Annual production of cucumbers worldwide is approximately 84 billion pounds.
provides about two-thirds of the global supply. Iran, Turkey, Russia, Egypt, Spain, Mexico, the Ukraine, Japan, Indonesia, and the U.S. all participate in the world cucumber market, with an especially high number of exports coming from Iran, Mexico, and Spain. Annual production of cucumbers worldwide is approximately 84 billion pounds.
Even though long, dark green, smooth-skinned garden cucumbers are familiar vegetables in the produce sections of most groceries, cucumbers actually come in a wide variety of colors, sizes, shapes and textures. You'll find white, yellow, and even orange-colored cucumbers, and they may be short, slightly oval, or even round in shape. Their skins can be smooth and thin, or thick and rough. In a technical sense, cucumbers are actually fruits, not vegetables. (Fruits are parts of flowering plants that come from the ovary.) But we've become accustomed to thinking and referring to cucumbers as vegetables.
All cucumbers belong to the botanical plant family calledCurcubitaceae. This broad family of plants includes melons and squashes. The cucumbers we're most familiar with in the grocery store belong to the specific genus/species group,Cucumis sativus.
While there are literally hundreds of different varieties of Cucumis sativus, virtually all can be divided into two basic types: slicing and pickling. Slicing cucumbers include all varieties that are cultivated for consumption in fresh form. In the United States, commonly planted varieties of slicing cucumber include Dasher, Conquistador, Slicemaster, Victory, Comet, Burpee Hybrid, and Sprint. These varieties tend to be fairly large in size and thick-skinned. Their size makes them easier for slicing, and their thick skin makes them easier to transport in whole food form without damage. (In many other countries, however, slicing cucumbers may be smaller in size and may be much more
thinly skinned.)
Nutritional Profile Gerkin
Cucumbers provide us with a variety of health-supportive phytonutrients. Included among these phytonutrients are flavonoids (apigenin, luteolin, quercetin, and kaempferol), lignans (pinoresinol, lariciresinol, and secoisolariciresinol), and triterpenes (cucurbitacins A, B, C, and D).
Cucumbers are an excellent source of anti-inflammatory vitamin K. They are also a very good source of the enzyme-cofactor molybdenum. They are also a good source of free radical-scavenging vitamin C; heart-healthy potassium and magnesium, bone-building manganese, and energy-producing vitamin B5. They also contain the important nail health-promoting mineral silica.
| ||||||||||||||||||||||||||||||||||||||||||||||||||
Pickling cucumbers include all varieties that are cultivated not for consumption in fresh form, but for processing into pickles. In the United States, commonly planted varieties of pickling cucumber include Royal, Calypso, Pioneer, Bounty, Regal, Duke, and Blitz. Some of these pickling varieties are black-spine types (in reference to the texture of their outer skin) and some are white-spine. While pickling cucumbers can always be eaten fresh, their smaller size and generally thinner skins make them easier to ferment and preserve/jar.
Pickling is a process than can be used for many different foods. It's not limited to cucumbers and or even to the vegetable food group. In general, the word "pickling" refers to a method of preventing food spoilage that involves soaking in a liquid and/or fermenting.
While the language used to describe pickles can be very confusing, there are only two basic types of pickles: fermented and non-fermented. Fermenting is a process in which fresh foods (in this case cucumbers) are allowed to soak in a solution for an extended period of time that allows microorganisms to make changes in the food. Among these changes is a build-up of lactic acid that serves to protect the pickles from spoilage. When fermented in an appropriate solution, fresh foods like cucumbers can be transformed in a way that greatly increases their shelf life. Cucumbers are typically fermented in brine (water that's been highly saturated in salt). In fact, the word "pickle" actually comes from the Dutch "pekel" meaning brine. Alongside of salt, pickling brines often contain other ingredients, including vinegar, dill seed, garlic, and lime (calcium hydroxide or calcium oxide). "Dill pickles" get their name from the addition of dill seed to the brine. "Kosher dills" are brined not only with dill, but also with garlic. (One important note in this regard: "kosher dills" are not necessarily pickled cucumbers that have been prepared according to kosher dietary laws. The word "kosher" in their name often refers to a general style of preparation in which a good bit of garlic has been used in the brining process. If you are seeking pickles that have been prepared according to kosher dietary laws, look for "certified kosher" on the label, not just "kosher" or "kosher-style.")
Fermented pickles are often called "brined pickles," but here's where confusion can set it. These two terms aren't truly interchangeable since some brined pickles are "quick brined" and haven't been given time for fermentation. When pickles are "quick brined," the brining solution usually contains a significant amount of vinegar, and it's this added vinegar that prevents the pickles from spoiling, not build up of lactic acid through the microbial fermentation process. Non-fermented pickles of all kinds - often referred to as "quick pickled" - rely on the addition of vinegar or another highly-acidic solution to prevent spoilage. "Quick pickling" with the use of vinegar can be accomplished in a matter of days. Pickling by fermentation usually takes a minimum of several weeks. If you would like to learn more about how pickled cucumbers compare in nutritional value to raw cucumbers, see this Q+A .
While genetically engineered cucumbers do exist, genetic engineering is not responsible for the existence of seedless varieties of cucumbers. Through a natural process called parthenogenesis, cucumber plants can fruit without pollen. In the absence of pollen, seeds do not develop in the fruit. While some people have a personal preference for seedless cucumbers, it's worth remembering that cucumber seeds are rich source of cucumber nutrients that are sometimes absent in the pulp and skin.
Sometimes you will hear the word "gherkin" being used to refer to cucumbers and pickles. This word can be used to describe a variety of cucumber that comes from the same plant species (Cucumis sativus) that is the source of most other cucumber varieties found in the grocery. But the term "gherkin" can also be used to describe a cucumber variety that comes from a different species of plant (Cucumis anguiria).
Flavonoids
- apigenin
- a luleolin
- a quercetin
- a kaempfe
- Lignans
- pinoresinol
- lariciresinol
- secoisolariciresinol
Triterpenes
- cucurbitacin A
- cucurbitacin B
- cucurbitacin C
- cucurbitacin D
Details about the best-researched health benefits of cucumbers are provided in the paragraphs below.
Antioxidant & Anti-Inflammatory Benefits
Anti-Cancer Benefits
Research on the anti-cancer benefits of cucumber is still in its preliminary stage and has been restricted thus far to lab and animal studies. Interestingly, however, many pharmaceutical companies are actively studying one group of compounds found in cucumber--called cucurbitacins--in the hope that their research may lead to development of new anti-cancer drugs. Cucurbitacins belong to a large family of phytonutrients called triterpenes. Cucurbitacins A, B, C, D and E have all been identified within fresh cucumber. Researchers have determined that several different signaling pathways (for example, the JAK-STAT and MAPK pathways) required for cancer cell development and cancer cell survival can be blocked by activity of cucurbitacins. Eventually, we expect to see human studies that confirm the anti-cancer benefits of cucumbers when consumed in a normal, everyday meal plan.
A second group of cucumber phytonutrients known to provide anti-cancer benefits are its lignans. The lignans pinoresinol, lariciresinol, and secoisolariciresinol have all been identified within cucumber. Interestingly, the role of these plant lignans in cancer protection involves the role of bacteria in our digestive tract. When we consume plant lignans like those found in cucumber, bacteria in our digestive tract take hold of these lignans and convert them into enterolignans like enterodiol and enterolactone. Enterolignans have the ability to bind onto estrogen receptors and can have both pro-estrogenic and anti-estrogenic effects. Reduced risk of estrogen-related cancers, including cancers of the breast, ovary, uterus, and prostate has been associated with intake of dietary lignans from plant foods like cucumber.
No comments:
Post a Comment