زنجبیل از گیاه زرد رنگ دارای رگههای بنفش با نام علمی Zingiber officinale بدست میآید. اگرچه معمولاً از زنجبیل به عنوان ریشه آن گیاه نام برده میشود ولی در اصل قسمت مورد استفاده گیاه ساقه متورم شده زیرزمینی آن است که «ریزوم» نام دارد.
جنس زنجبیل سردهای از تیره زنجبیلیان علفی ایستاده چندساله با حدود ۷۰ گونه بومی آسیای جنوب شرقی است با ساقه باریک و نیمانند و برگهای سرنیزهای سـبز براق که از زمینساقهای غدهای میرویند؛ گلهای آنها سبز مایل به زرد با لبهای ارغوانی و لکههای کرمرنـگ و گلآذین مخروطی و کوچک و سنبلهای متراکم است که در تابستان از زمین ساقه بیرون میزند.
زنجبیل از زمانهای دور مورد استفاده بوده وهنوز هم درطب سنتی چین نقش مهمی را ایفا میکند. در ایران باستان نیز این گیاه با نام ژنگویر شناخته شده بود و کاربرد داشت و از ایران و کشورهای عربی به سوی غرب سفر کرد. در غرب پزشکی یونانی به نام «دیوسکوریدس» نخستین بار در سده یکم میلادی کاربرد درمانی زنجبیل را ثبت کرد، گرچه سدهها پیش از آن این گیاه عطردار از کشورهای خاور دور به اروپا صادر میشد، تا سدههای میانه، به عنوان یک ماده اولیه آشپزی در اروپا کاملاً شناخته شده بود.
امروزه این گیاه در بیشتر مناطق استوایی کشت میشود. آشنایان با پزشکی هندی آیورودا از آن به عنوان داروی جهانی نام میبرند؛ این امر نه تنها به خاطر خواص ضد قارچی، ضد باکتری آن است، بلکه به خاطر اثر تسکین بخش آن بر روی دستگاه گوارش هم هست، که اینها باعث شده هندیان بیش از ۲۰۰۰ سال زنجبیل را مصرف کردهاند و یکی از بهترین شفابخشهای طبیعی برای درمان بیماریهای مسافرت، حالت تهوع و سرگیجه در غرب مطرح کرده و برخلاف بعضی داروهای مرسوم این بیماریها هیچ عوارض جانبی منفی ندارد.
در پژوهشی که در دانمارک انجام شد به ۴۰ نفر از دانشجویان نیرو دریایی یک گرم پودر زنجبیل و به ۴۰ نفر دیگر مقداری دارونما داده و مشاهده شد زنجبیل به مراتب در کاهش دفعات استفراغ و از بین بردن عرق سرد موثر بوده. بعضی کارشناسان، زنجبیل را برای درمان تهوع صبحگاهی دوران حاملگی توصیه میکنند. البته لازم به تذکر است در این خصوص همیشه با پزشک مشورت نمایید.
بررسیها نشان دادهاند که زنجبیل میتواند باعث جلوگیری از تهوع ناشی از عمل جراحی و شیمی درمانی شود، مطالعات بالینی در لندن انجام شد نشان داد مصرف یک گرم پودر زنجبیل در جلوگیری از حالت تهوع و استفراغ بعد از عمل جراحی به اندازه داروهای آرامبخش مرسوم موثر است. خاصیت گرم کنندگی و فعال کنندگی زنجبیل آن را به عنوان شفابخش خانگی معرفی کردهاست.
اگر به کشیدگی عضله دچار شدهاید، گلودرد دارید و یا از بیماری مسافرت در رنج هستید برای خود یک تونیک زنجبیل درست کنید و میل نمائید تا به قدرت شفا بخش فوق العاده آن پی ببرید. زنجبیل فواید فراوانی برای سلامتی دارد. مطلب ما درباره ساقه گرد پیچ خوردهای است که گاهی برای غذا سرخ کردنی از آن استفاده میشود.
زنجبیل را میتوان به آب گرم اضافه کرد و در مواقع سرمازدگی پاها را در آن قرار داد. در مواقع دندان درد میتوان آن را جوید و هنگام گلو درد از غرغره آن استفاده کرد. همچنین برای درمان سرماخوردگی آن را به آب گرم، لیمو و عسل افزود.اگر علاقهای به استفاده از این محلولها ندارید میتوانید آن را پس از خرد کردن برای تسکین سردرد به ناحیه پیشانی بمالید؛ روغن زنجبیل را میتوان با روغنهای دیگر رقیق کرده و برای تسکین دردهای ناشی از کشیدگی ماهیچه آسیب دیده روی آن ماساژ داد تا گردش خون را بهبود بخشیده و باعث تسکین درد شود."
دلیل سودمند بودن زنجبیل اجزای تشکیل دهنده اصلی زنجبیل شامل نشاسته، اسانسها مانند زینجیبرن (zingiberen) که به زنجبیل بوی خاص مید هد، و رزین است. به نظر میرسد بیشتر ارزش درمانی زنجبیل به واسطه ترکیبات ادویهای آن یعنی جینجرولها (Gingerols) است که طعم تند و سوزاننده آن ناشی از آنهاست، اگرچه هنوز طرز عمل آن مشخص نیست.
کاربردهای دیگر زنجبیل:
مصرف زنجبیل در افراد دچار زخم معده و یا زخم دوازدهه و یا همزمان با مصرف داروهای ضد انعقاد - که میتواند برای رقیق شدن خون شوند - اکیداً منع شدهاست.همچنین در مورد استفاده از گیاهان دارویی، بویژه اگر به نوزاد خود شیر میدهید یا باردار هستید با پزشک خود مشورت کنید.
پیوند به بیرون[ویرایش]
For other uses, see Ginger (disambiguation).
Ginger or ginger root is the rhizome of the plant Zingiber officinale, consumed as a delicacy, medicine, or spice. It lends its name to its genus and family (Zingiberaceae). Other notable members of this plant family are turmeric, cardamom, and galangal. The distantly related dicots in the Asarum genus have the common name wild ginger because of their similar taste.
Ginger is indigenous to southern China, from whence it spread to the Spice Islands and other parts of Asia, and subsequently to West Africa and the Caribbean. Ginger appeared in Europe, via India, in the 1st century CE as a result of the lucrative spice trade.
Mid-14c., from Old English gingifer, from Medieval Latin gingiber, from Latin zingiberi, from Greek zingiberis, from Prakrit (Middle Indic) singabera, from Sanskrit srngaveram, from srngam "horn" + vera- "body," so called from the shape of its root. But this may be Sanskrit folk etymology, and the word may be from an ancient Dravidian name that also produced the Tamil name for the spice, inchi-ver, from inchi "root." Cf. gin (v.). The word apparently was readopted in Middle English from Old French gingibre (Modern French gingembre).
Ginger produces clusters of white and pink flower buds that bloom into yellow flowers. Because of its aesthetic appeal and the adaptation of the plant to warm climates, ginger is often used as landscaping around subtropical homes. It is a perennial reed-like plant with annual leafy stems, about a meter (3 to 4 feet) tall. Traditionally, the rhizome is gathered when the stalk withers; it is immediately scalded, or washed and scraped, to kill it and prevent sprouting. The fragrant perisperm of Zingiberaceae is used as sweetmeats by Bantu, also as a condiment and sialogogue.
Ginger produces a hot, fragrant kitchen spice. Young ginger rhizomes are juicy and fleshy with a very mild taste. They are often pickled in vinegar or sherry as a snack or just cooked as an ingredient in many dishes. They can also be steeped in boiling water to make ginger tea, to which honey is often added; sliced orange or lemon fruit may also be added. Ginger can also be made into candy, or ginger wine which has been made commercially since 1740.
Mature ginger rhizomes are fibrous and nearly dry. The juice from old ginger roots is extremely potent and is often used as a spice in Indian recipes, and is a quintessential ingredient of Chinese, Korean, Japanese, Vietnamese and many South Asian cuisines for flavoring dishes such as seafood or goat meat and vegetarian cuisine.
Fresh ginger can be substituted for ground ginger at a ratio of 6 to 1, although the flavors of fresh and dried ginger are somewhat different. Powdered dry ginger root is typically used as a flavoring for recipes such as gingerbread, cookies, crackers and cakes, ginger ale, and ginger beer.
Candied ginger, or crystallized ginger, is the root cooked in sugar until soft, and is a type of confectionery.
Fresh ginger may be peeled before eating. For longer-term storage, the ginger can be placed in a plastic bag and refrigerated or frozen.
In Indian cuisine, ginger is a key ingredient, especially in thicker gravies, as well as in many other dishes, both vegetarian and meat-based. Ginger also has a role in traditional Ayurvedic medicine. Ginger is also an ingredient in traditional Indian drinks, both cold and hot, including spiced Masala chai. Across India, ginger is variously called adrak in Hindi, Punjabi and Urdu, aad in Maithili, aadi in Bhojpuri, aada in Assamese and Bengali, Adu in Gujarati, Allam (అల్లం) in Telugu, hashi shunti (ಹಸಿ ಶುಂಟಿ) in Kannada, inji (இஞ்சி) in Tamil and Malayalam, inguru (ඉඟුරු) in Sinhalese, alay in Marathi, and aduwa(अदुवा ) in Nepali. Fresh ginger is one of the main spices used for making pulse and lentil curries and other vegetable preparations. Fresh, as well as dried, ginger is used to spice tea and coffee, especially in winter. Ginger powder is also used in certain food preparations, particularly for pregnant or nursing women, the most popular one being katlu which is a mixture of gum resin, ghee, nuts, and sugar. Ginger is also consumed in candied and pickled form. In Bangladesh, ginger is finely chopped or ground into a paste to use as a base for chicken and meat dishes alongside onion and garlic.
In Japan, ginger is pickled to make beni shoga and gari or grated and used raw on tofu or noodles. It is also made into a candy called shoga no sato zuke. In the traditional Korean kimchi, ginger is either finely minced or just juiced in order to avoid the fibrous texture and added to the ingredients of the spicy paste just before the fermenting process.
In Burma, ginger is called gyin. It is widely used in cooking and as a main ingredient in traditional medicines. It is also consumed as a salad dish called gyin-thot, which consists of shredded ginger preserved in oil, and a variety of nuts and seeds. In Indonesia, a beverage called wedang jahe is made from ginger and palm sugar. Indonesians also use ground ginger root, called jahe, as a common ingredient in local recipes. In Malaysia, ginger is called halia and used in many kinds of dishes, especially a soup. In the Philippines, it is a common ingredient in local dishes and it is brewed into a tea called salabat. In Vietnam, the fresh leaves, finely chopped, can also be added to shrimp-and-yam soup (canh khoai mỡ) as a top garnish and spice to add a much subtler flavor of ginger than the chopped root.
In China, sliced or whole ginger root is often paired with savory dishes such as fish, and chopped ginger root is commonly paired with meat, when it is cooked. However, candied ginger is sometimes a component of Chinese candy boxes, and an herbal tea can also be prepared from ginger.
In the Caribbean, ginger is a popular spice for cooking, and making drinks such as sorrel, a seasonal drink made during the Christmas season. Jamaicans make ginger beer both as a carbonated beverage and also fresh in their homes. Ginger tea is often made from fresh ginger, as well as the famous regional specialty Jamaican ginger cake.
On the island of Corfu, Greece, a traditional drink called τσιτσιμπύρα (tsitsibira), a type of ginger beer, is made. The people of Corfu and the rest of the Ionian islands adopted the drink from the British, during the period of the United States of the Ionian Islands.
In Arabic, ginger is called zanjabil, and in some parts of the Middle East, gin�gayu (生姜湯). From its main ingredient ginger tea derives a flavor that is spicy and stimulating. Ginger, known as Adarak in Hindi, is used frequently in tea made in all parts of India as well.
In Western cuisine, ginger is traditionally used mainly in sweet foods such as ginger ale, gingerbread, ginger snaps, parkin, ginger biscuits and speculaas. A ginger-flavored liqueur called Canton is produced in Jarnac, France. Ginger wine is a ginger-flavored wine produced in the United Kingdom, traditionally sold in a green glass bottle. Ginger is also used as a spice added to hot coffee and tea.
Medicinal use and research
According to the American Cancer Society, ginger has been promoted as a cancer treatment "to keep tumors from developing", but "available scientific evidence does not support this". They add: "Recent preliminary results in animals show some effect in slowing or preventing tumor growth. While these results are not well understood, they deserve further study. Still, it is too early in the research process to say whether ginger will have the same effect in humans."
In limited studies, ginger was found to be more effective than placebo for treating nausea caused by seasickness, morning sickness and chemotherapy, although ginger was not found superior to placebo for pre-emptively treating post-operative nausea. Some studies advise against taking ginger during pregnancy, suggesting that ginger is mutagenic, though some other studies have reported antimutagenic effects. Other preliminary studies showed that ginger may affect arthritis pain or have blood thinning and cholesterol lowering properties, but these effects remain unconfirmed.
A 2013 in vivo evaluation demonstrated ginger extract showed a hepatoprotective effect in rats. A 2013 review found that ginger is a free radical scavenger, antioxidant; thus inhibits lipid peroxidation and that these attributes could be contributing to its known gastroprotective effects. A 2012 review found ginger extract and ginger juice possess anti-emetic effects against chemotherapy-induced nausea and vomiting in experimental animals. A 2012 review found the radioprotective properties of ginger extract might be effective to protect against gamma radiation-induced side effects from cancer treatment in mice. A 2011 review found ginger displays chemopreventive and antineoplastic effects. The same review found that ginger appears to be promising for cancer prevention, though further research is necessary to evaluate the efficacy and safety of ginger. Advanced glycation end-products are possibly associated in the development of diabetic cataract for which ginger was effective in preliminary studies, apparently by acting through antiglycating mechanisms. Zingerone may have activity against enterotoxigenic Escherichia coli in enterotoxin-induced diarrhea in mice.
The characteristic odor and flavor of ginger is caused by a mixture of zingerone, shogaols and gingerols, volatile oils that compose one to three percent of the weight of fresh ginger. In laboratory animals, the gingerols increase the motility of the gastrointestinal tract and have analgesic, sedative, antipyretic and antibacterial properties. A study at the University of Michigan demonstrated that gingerols can inhibit growth of ovarian cancer cells in vitro. -gingerol (1-[4'-hydroxy-3'-methoxyphenyl]-5-hydroxy-3-decanone) is the major pungent principle of ginger.
Ginger contains up to three percent of a fragrant essential oil whose main constituents are sesquiterpenoids, with (-)-zingiberene as the main component. Smaller amounts of other sesquiterpenoids (β-sesquiphellandrene, bisabolene and farnesene) and a small monoterpenoid fraction (β-phelladrene, cineol, and citral) have also been identified.
The pungent taste of ginger is due to nonvolatile phenylpropanoid-derived compounds, particularly gingerols and shogaols, which form from gingerols when ginger is dried or cooked. Zingerone is also produced from gingerols during this process; this compound is less pungent and has a spicy-sweet aroma. Ginger is also a minor chemical irritant, and because of this was used as a horse suppository by pre-World War I mounted regiments for feaguing.
The traditional medical form of ginger historically was called Jamaica ginger; it was classified as a stimulant and carminative and used frequently for dyspepsia, gastroparesis, slow motility symptoms, constipation, and colic. It was also frequently employed to disguise the taste of medicines.
Some studies indicate ginger may provide short-term relief of pregnancy-related nausea and vomiting. Studies are inconclusive about effects for other forms of nausea or in treating pain from rheumatoid arthritis, osteoarthritis, or joint and muscle injury. Side effects, mostly associated with powdered ginger, are gas, bloating, heartburn, and nausea.
If consumed in reasonable quantities, ginger has few negative side effects, and is on the FDA's "generally recognized as safe" list, though it does interact with some medications, including warfarin. Ginger is contraindicated in people suffering from gallstones, because it promotes the production of bile.
Allergic reactions to ginger generally result in a rash, and although generally recognized as safe, ginger can cause heartburn, bloating, gas, belching and nausea, particularly if taken in powdered form. Unchewed fresh ginger may result in intestinal blockage, and individuals who have had ulcers, inflammatory bowel disease or blocked intestines may react badly to large quantities of fresh ginger. Ginger can also adversely affect individuals with gallstones. There are also suggestions that ginger may affect blood pressure, clotting, and heart rhythms.
Products in Taiwan made from Hebo Natural Products Limited (禾博天然產物有限公司) of China contained ginger contaminated with DIBP, some 80,000 nutritional supplement capsules made with imported ginger powder were seized by the Public Health Department of Taiwan in June 2011.
Another plant in the Zingiberaceae family, galangal, is used for similar purposes as ginger in Thai cuisine. Galangal is also called Thai ginger, fingerroot (Boesenbergia rotunda), Chinese ginger, or the Thai krachai.
A dicotyledonous native species of eastern North America, Asarum canadense, is also known as "wild ginger", and its root has similar aromatic properties, but it is not related to true ginger. The plant also contains aristolochic acid, a carcinogenic compound.
From 1585, Jamaican ginger was the first oriental spice to be grown in the New World and imported back to Europe. India, with over 30% of the global share, now leads in global production of ginger, replacing China, which has slipped to the second position (~20.5%), followed by Indonesia (~12.7%), Nepal (~11.5%) and Thailand (~10%).