PubChem CID · CC0
tryptophan zwitterion
Foods containing this compound

Flax (also known as common flax or linseed) is a member of the genus Linum in the family Linaceae. It is a food and fibre crop that is grown in cooler regions of the world. Flax fibres are taken from the stem of the plant and are two to three times as strong as those of cotton. As well, flax fibres are naturally smooth and straight. Europe and North America depended on flax for cloth until the nineteenth century, when cotton overtook flax as the most common plant used for making linen paper. Flax is grown on the Canadian Praires for linseed oil, which is used as a drying oil in paints and varnish and in products such as linoleum and printing inks. It is native to the region extending from the eastern Mediterranean to India and was probably first domesticated in the Fertile Crescent. Flax was extensively cultivated in ancient Ethiopia and ancient Egypt. A discovery reported in 2009 of spun, dyed, and knotted wild flax fibers in a prehistoric cave in the Republic of Georgia shows that the plant was already in use by humans at the surprisingly early date of 30,000 B.C. New Zealand flax is not related to flax but was named after it, as both plants are used to produce fibers.
The lychee (Litchi chinensis) (Chinese: ??; pinyin: lì zh?) is the sole member of the genus Litchi in the soapberry family, Sapindaceae. It is a tropical and subtropical fruit tree native to the Guangdong and Fujian provinces of China, and now cultivated in many parts of the world. The fresh fruit has a "delicate, whitish pulp" with a floral smell and a fragrant, sweet flavor. Since this perfume-like flavor is lost in the process of canning, the fruit is usually eaten fresh.
The mango is a fleshy stone fruit belonging to the genus Mangifera, consisting of numerous tropical fruiting trees in the flowering plant family Anacardiaceae. The mango is native to South Asia, from where it has been distributed worldwide to become one of the most cultivated fruits in the tropics. While other Mangifera species (e.g. horse mango, M. foetida) are also grown on a more localized basis, Mangifera indica – the 'common mango' or 'Indian mango' – is the only mango tree commonly cultivated in many tropical and subtropical regions. It is the national fruit of India, Philippines and Pakistan. In several cultures, its fruit and leaves are ritually used as floral decorations at weddings, public celebrations and religious ceremonies.

The cashew, or caju, is a small tree native to Brazil. Cashew nuts are the seeds of the cashew apple, and are found in the grey bump at the end of the fruit. The cashew apple itself is sweet, soft and juicy.Cashews are usually sold roasted and salted and eaten as a snack.
The avocado (Persea americana) is a tree native to Central Mexico, classified in the flowering plant family Lauraceae along with cinnamon, camphor and bay laurel. Avocado or alligator pear also refers to the fruit (botanically a large berry that contains a single seed) of the tree. Avocados are commercially valuable and are cultivated in tropical and Mediterranean climates throughout the world. They have a green-skinned, fleshy body that may be pear-shaped, egg-shaped, or spherical. Commercially, it ripens after harvesting. Trees are partially self-pollinating and often are propagated through grafting to maintain a predictable quality and quantity of the fruit.

Phaseolus vulgaris, the common bean, string bean, field bean, flageolet bean, French bean, garden bean, haricot bean, pop bean, or snap bean, is a herbaceous annual plant grown worldwide for its edible fruit, either the dry seed or the unripe fruit, both of which are referred to as beans. The leaf is also occasionally used as a vegetable, and the straw can be used for fodder. Along with other species of the bean genus (Phaseolus), it is classified botanically into the legume family (Fabaceae), most of whose members acquire nitrogen through an association with rhizobia, a species of nitrogen-fixing bacteria.
Phoenix dactylifera (date, or date palm) is a palm in the genus Phoenix, cultivated for its edible sweet fruit. The fruit is known as a date. The fruit's English name (through Old French), as well as the Latin species name dactylifera, both come from the Greek word for "finger", dáktulos, because of the fruit's elongated shape. Dates are oval-cylindrical, 3?7 cm long, and 2?3 cm (0.79?1.18 in) diameter, and when ripe, range from bright red to bright yellow in colour, depending on variety. Dates contain a single stone about 2?2.5 cm (0.79?0.98 in) long and 6?8 mm (0.24?0.31 in) thick. Three main cultivar groups of date exist: soft (e.g. 'Barhee', 'Halawy', 'Khadrawy', 'Medjool'), semi-dry (e.g. 'Dayri', 'Deglet Noor', 'Zahdi'), and dry (e.g. 'Thoory'). The type of fruit depends on the glucose, fructose and sucrose content.

Prunus is a genus of trees and shrubs, which includes the plums, cherries, peaches, nectarines, apricots and almonds. Around 430 species are spread throughout the northern temperate regions of the globe. Many members of the genus are widely cultivated for fruit and ornament. The fruit from this genus are commonly called the stone fruit.
An apricot is a fruit or the tree that bears the fruit. Usually, an apricot tree is from the tree species Prunus armeniaca, but the species Prunus brigantina, Prunus mandshurica, Prunus mume, and Prunus sibirica are closely related, have similar fruit, and are also called apricots.
The almond (Prunus dulcis, syn. Prunus amygdalus, Amygdalus communis, Amygdalus dulcis) (or badam in Indian English, from Persian: بادام ) is a species of tree native to the Middle East and South Asia. "Almond" is also the name of the edible and widely cultivated seed of this tree. Within the genus Prunus, it is classified with the peach in the subgenus Amygdalus, distinguished from the other subgenera by the corrugated shell (endocarp) surrounding the seed.


Asparagus officinalis is a spring vegetable, a flowering perennial plant species in the genus Asparagus. It was once classified in the lily family, like its Allium cousins, onions and garlic, but the Liliaceae have been split and the onion-like plants are now in the family Amaryllidaceae and asparagus in the Asparagaceae. Asparagus officinalis is native to most of Europe, northern Africa and western Asia, and is widely cultivated as a vegetable crop.

The Brazil nut (Bertholletia excelsa) is a South American tree in the family Lecythidaceae, and also the name of the tree's commercially harvested edible seed.

Brassica oleracea is the species of plant that includes many common foods as cultivars, including cabbage, broccoli, cauliflower, kale, Brussels sprouts, savoy, and Chinese kale. In its uncultivated form it is known as wild cabbage. It is native to coastal southern and western Europe. Its tolerance of salt and lime and its intolerance of competition from other plants typically restrict its natural occurrence to limestone sea cliffs, like the chalk cliffs on both sides of the English Channel.

The burbot (Lota lota) or bubbot is the only gadiform (cod-like) freshwater fish. Also known as mariah, the lawyer, and (misleadingly) eelpout, the burbot is closely related to the marine common ling and the cusk. It is the only member of the genus Lota.

The Brussels sprout is a cultivar in the Gemmifera group of cabbages, grown for its edible buds. The leafy green vegetables are typically 2.5–4 cm (0.98–1.6 in) in diameter and look like miniature cabbages. The Brussels sprout has long been popular in Brussels, Belgium, and may have originated there.

Cassava (also called yuca, mogo, or manioc) is a woody shrub cultivated in tropical and subtropical regions for its edible starchy tuberous root, a major source of carbohydrates. It differs from the similarly-spelled yucca, an unrelated fruit-bearing plant. Cassava, when dried to a starchy, powdery (or pearly) extract is called tapioca, while its fermented, flaky version is named garri. [Wikipedia]

The chayote (Sechium edule), also known as christophene or christophine, cho-cho, mirliton or merleton, chuchu, centinarja, pear squash, vegetable pear, chouchoute, choko, pipinola, güisquil (El Salvador) is an edible plant belonging to the gourd family Cucurbitaceae, along with melons, cucumbers and squash. Chayote is originally native to Mexico or Central America where it grows abundantly and has little commercial value, and it has been introduced as a crop all over Latin America, and worldwide. The main growing regions are Brazil, Costa Rica and Veracruz, Mexico. Costa Rican chayotes are predominantly exported to the European Union, whereas Veracruz is the main exporter of chayotes to the United States. The word chayote is a Spanish derivative of the Nahuatl word chayohtli. Chayote was one of the many foods introduced to Europe by early explorers, who brought back a wide assortment of botanical samples. The Age of Conquest also spread the plant south from Mexico, ultimately causing it to be integrated into the cuisine of many other Latin American nations. The chayote fruit is used in mostly cooked forms. When cooked, chayote is usually handled like summer squash, it is generally lightly cooked to retain the crisp flavor. Though rare and often regarded as especially unpalatable and tough in texture, raw chayote may be added to salads or salsas, most often marinated with lemon or lime juice. Whether raw or cooked, chayote is a good source of amino acids and vitamin C. Although most people are familiar only with the fruit as being edible, the root, stem, seeds and leaves are as well. The tubers of the plant are eaten like potatoes and other root vegetables, while the shoots and leaves are often consumed in salads and stir fries, especially in Asia. Like other members of the gourd family, such as cucumbers, melons, and squash, chayote has a sprawling habit, and it should only be planted if there is plenty of room in the garden. The roots are also highly susceptible to rot, especially in containers, and the plant in general is finicky to grow. However, in Australia and New Zealand, it is an easily grown yard or garden plant, set on a chicken wire support or strung against a fence.

Chervil (Anthriscus cerefolium), sometimes called garden chervil to distinguish it from similar plants also called chervil, or French parsley, is a delicate annual herb related to parsley. It is commonly used to season mild-flavoured dishes and is a constituent of the French herb mixture fines herbes.

The coconut tree (Cocos nucifera), is a member of the family Arecaceae (palm family). It is the only accepted species in the genus Cocos. The term coconut can refer to the entire coconut palm, the seed, or the fruit, which, botanically, is a drupe, not a nut. The spelling cocoanut is an archaic form of the word. The term is derived from 16th-century Portuguese and Spanish coco, meaning "head" or "skull", from the three indentations on the coconut shell that resemble facial features.
Malus, apple, is a genus of about 30-55 species of small deciduous trees or shrubs in the family Rosaceae, including the domesticated orchard apple (M. domestica). The other species are generally known as crabapples, crab apples, crabs, or wild apples.

Chinese cabbage (Brassica rapa, subspecies pekinensis and chinensis) can refer to two distinct varieties of Chinese leaf vegetables often used in Chinese cuisine: Pekinensis (napa cabbage) and Chinensis (bok choi).
Physalis is a genus of plants in the nightshade family (Solanaceae), native to warm temperate and subtropical regions of the world. All but one species are native to the New World, and most species occur in Mexico in particular. At least 46 species are endemic to the country. The genus is characterised by the small orange fruit similar in size, shape and structure to a small tomato, but partly or fully enclosed in a large papery husk derived from the calyx. Many Physalis species are called groundcherries. One name for Physalis peruviana is Cape gooseberry, not to be confused with the true gooseberries, which are of the genus Ribes in the family Grossulariaceae.
The haddock (Melanogrammus aeglefinus) is a marine fish distributed on both sides of the North Atlantic. Haddock is a popular food fish and is widely fished commercially.
The Jerusalem artichoke (Helianthus tuberosus), also called sunroot, sunchoke, earth apple or topinambour, is a species of sunflower native to eastern North America, and found from eastern Canada and Maine west to North Dakota, and south to northern Florida and Texas. It is also cultivated widely across the temperate zone for its tuber, which is used as a root vegetable.
Kumquats or cumquats are a group of small fruit-bearing trees in the flowering plant family Rutaceae, either forming the genus Fortunella, or placed within Citrus sensu lato. The edible fruit closely resembles that of the orange (Citrus sinensis), but it is much smaller and ovular, being approximately the size and shape of a large olive. The English name "kumquat" derives from the Cantonese pronunciation gam1 gwat1 (given in Jyutping romanization).

The kiwifruit, often shortened to kiwi in many parts of the world, is the edible berry of a woody vine in the genus Actinidia. The most common cultivar group of kiwifruit ('Hayward') is oval, about the size of a large hen's egg (5?8 centimetres in length and 4.5?5.5 centimetres in diameter). It has a fibrous, dull greenish-brown skin and bright green or golden flesh with rows of tiny, black, edible seeds. The fruit has a soft texture and a sweet but unique flavor, and today is a commercial crop in several countries, such as Italy, New Zealand, Chile, Greece and France.

The loganberry (Rubus × loganobaccus) is an hexaploid hybrid produced from pollination of a plant of the octaploid blackberry 'Aughinbaugh' by a diploid red raspberry (Rubus idaeus). The plant and the fruit resemble the blackberry more than the raspberry, but the fruit color is a dark red, rather than black as in blackberries. Loganberries are cultivated commercially and by gardeners.
Endive, Cichorium endivia, is a leaf vegetable belonging to the daisy family. Endive can be cooked or used raw in salads. Endive is rich in many vitamins and minerals, especially in folate and vitamins A and K, and is high in fiber. There are two main varieties of cultivated C. endivia endive: (1) Curly endive, or frisée (var crispum). This type has narrow, green, curly outer leaves. It is sometimes called chicory in the United States and is called chicorée frisée in French. Further confusion results from the fact that frisée also refers to greens lightly wilted with oil. (2) Escarole, or broad-leaved endive (var latifolia), has broad, pale green leaves and is less bitter than the other varieties. Varieties or names include broad-leaved endive, Bavarian endive, Batavian endive, grumolo, scarola, and scarole. It is eaten like other greens, sauteed, chopped into soups and stews, or as part of a green salad (Wikipedia).

Common chicory, Cichorium intybus, is a somewhat woody, perennial herbaceous plant usually with bright blue flowers, rarely white or pink. Many varieties are cultivated for salad leaves, chicons (blanched buds), or for roots (var. sativum), which are baked, ground, and used as a coffee substitute and additive. It is also grown as a forage crop for livestock. It lives as a wild plant on roadsides in its native Europe, and in North America and Australia, where it has become widely naturalized.

Cattle (colloquially cows) are the most common type of large domesticated ungulates. They are a prominent modern member of the subfamily Bovinae, are the most widespread species of the genus Bos, and are most commonly classified collectively as Bos primigenius. Cattle are raised as livestock for meat (beef and veal), as dairy animals for milk and other dairy products, and as draft animals (oxen or bullocks) (pulling carts, plows and the like). Other products include leather and dung for manure or fuel. In some regions, such as parts of India, cattle have significant religious meaning. From as few as 80 progenitors domesticated in southeast Turkey about 10,500 years ago, an estimated 1.3 billion cattle are in the world today. In 2009, cattle became the first livestock animal to have a fully mapped genome.

The Key lime (Citrus × aurantiifolia) is a citrus species with a globose fruit, 2.5-5 cm in diameter (1-2 in), that is yellow when ripe but usually picked green commercially. It is smaller and seedier, with a higher acidity, a stronger aroma, and a thinner rind, than that of the Persian lime (Citrus × latifolia). It is valued for its unique flavor compared to other limes, with the Key lime usually having a more tart and bitter flavor. The name comes from its association with the Florida Keys, where it is best known as the flavoring ingredient in Key lime pie. It is also known as West Indian lime, bartender's lime, Omani lime, or Mexican lime, the latter classified as a distinct race with a thicker skin and darker green color. Philippine varieties have various names, including dayap and bilolo.
The lemon is a small evergreen tree native to Asia, and the tree's ellipsoidal yellow fruit. The fruit is used for culinary and non-culinary purposes throughout the world, primarily for its juice, though the pulp and rind are also used in cooking and baking. The juice of the lemon is about 5% to 6% citric acid, which gives lemons a sour taste. The distinctive sour taste of lemon juice makes it a key ingredient in drinks and foods such as lemonade.
The orange (specifically, the sweet orange) is the fruit of the citrus species Citrus × sinensis in the family Rutaceae.The fruit of the Citrus sinensis is considered a sweet orange, whereas the fruit of the Citrus aurantium is considered a bitter orange. The orange is a hybrid, possibly between pomelo (Citrus maxima) and mandarin (Citrus reticulata), which has been cultivated since ancient times.

The common bream, freshwater bream, bream, bronze bream or carp bream, Abramis brama, is a European species of freshwater fish in the family Cyprinidae. It is now considered to be the only species in the genus Abramis.
Coriander (Coriandrum sativum), also known as cilantro, Chinese parsley or dhania, is an annual herb in the family Apiaceae. Coriander is native to regions spanning from southern Europe and North Africa to southwestern Asia. It is a soft, hairless plant growing to 50 cm tall. The leaves are variable in shape, broadly lobed at the base of the plant, and slender and feathery higher on the flowering stems. The flowers are borne in small umbels, white or very pale pink, asymmetrical, with the petals pointing away from the centre of the umbel longer (5–6 mm) than those pointing towards it (only 1–3 mm long). The fruit is a globular, dry schizocarp 3–5 mm ( ) in diameter.

The leek is a vegetable that belongs, along with onion and garlic, to the genus Allium, currently placed in family Amaryllidaceae, subfamily Allioideae. Historically many scientific names were used for leeks, which are now treated as cultivars of Allium ampeloprasum. Two related vegetables, elephant garlic and kurrat, are also cultivars of A. ampeloprasum, although different in their uses as food. The edible part of the leek plant is a bundle of leaf sheaths that is sometimes erroneously called a stem or stalk.

Frozen dessert is the generic name for desserts made by freezing liquids, semi-solids, and sometimes even solids. They may be based on flavored water (shave ice, sorbet, snow cones, etc.), on fruit purées (such as sorbet), on milk and cream (most ice creams), on custard (frozen custard and some ice creams), on mousse (semifreddo), and others.
With a history of human use of over 7,000 years, garlic (Allium sativum) is native to central Asia, and has long been a staple in the Mediterranean region, as well as a frequent seasoning in Asia, Africa, and Europe. There are two sub-varieties of allium sativum: Allium sativum var. sativum (soft-necked garlic) and Allium sativum var. ophioscorodon (hard-necked garlic). Soft-necked garlic is the most commonly found. Bulb garlic is available in many forms, including fresh, frozen, dried, fermented (black garlic) and shelf stable products (in tubes or jars). [Wikipedia]
The common fig (Ficus carica) is a species of flowering plant in the genus Ficus, from the family Moraceae, known as the common fig (or just the fig), انجیر (Urdu), anjeer (Hindi), and dumur (Bengali). It is the source of the fruit also called the fig, and as such is an important crop in those areas where it is grown commercially. Native to the Middle East and western Asia, it has been sought out and cultivated by man since ancient times, and is now widely grown throughout the temperate world, both for its fruit and as an ornamental plant. Figs can be eaten fresh or dried, and used in jam-making.
The garden strawberry (or simply strawberry; Fragaria × ananassa) is a widely grown hybrid species of the genus Fragaria (collectively known as the strawberries). It is cultivated worldwide for its fruit. The fruit (which is not a botanical berry, but an aggregate accessory fruit) is widely appreciated for its characteristic aroma, bright red color, juicy texture, and sweetness. It is consumed in large quantities, either fresh or in such prepared foods as preserves, fruit juice, pies, ice creams, milkshakes, and chocolates. Artificial strawberry aroma is also widely used in many industrial food products. As strawberry flavor and fragrance are popular characteristics for consumers,they are used widely in a variety of manufacturing, including foods, beverages, confections, perfumes and cosmetics. Sweetness, fragrance and complex flavor are favorable attributes. In plant breeding and farming, emphasis is placed on sugars, acids, and volatile compounds, which improve the taste and fragrance of a ripe strawberry. Esters, terpenes, and furans are chemical compounds having the strongest relationships to strawberry flavor and fragrance, with a total of 31 volatile compounds significantly correlated to favorable flavor and fragrance [Wikipedia]
The soybean (US) or soya bean (UK) (Glycine max) is a species of legume native to East Asia, widely grown for its edible bean which has numerous uses. The plant is classed as an oilseed rather than a pulse by the UN Food and Agricultural Organization (FAO). Fat-free (defatted) soybean meal is a significant and cheap source of protein for animal feeds and many prepackaged meals; soy vegetable oil is another product of processing the soybean crop. For example, soybean products such as textured vegetable protein (TVP) are ingredients in many meat and dairy analogues. Soybeans produce significantly more protein per acre than most other uses of land. Traditional nonfermented food uses of soybeans include soy milk, and from the latter tofu and tofu skin. Fermented foods include soy sauce, fermented bean paste, natto, and tempeh, among others. The oil is used in many industrial applications. The main producers of soy are the United States (35%), Brazil (27%), Argentina (19%), China (6%) and India (4%). The beans contain significant amounts of phytic acid, alpha-linolenic acid, and isoflavones.
A soft drink (also called a soda, pop, coke, soda pop, fizzy drink, tonic, or carbonated beverage) is a non-alcoholic beverage that typically contains water (often, but not always carbonated water), a sweetener, and a flavoring agent. The sweetener may be sugar, high-fructose corn syrup, or a sugar substitute (in the case of diet drinks). A soft drink may also contain caffeine, fruit juice, or both. Widely sold soft drink flavors are cola, lemon-lime, root beer, orange, grape, vanilla, ginger ale, fruit punch, and sparkling lemonade. Soft drinks may be served chilled or at room temperature. They are rarely heated. [Wikipedia]

Chives is the common name of Allium schoenoprasum, the smallest species of the edible onions. A perennial plant, it is native to Europe, Asia and North America. A. schoenoprasum is the only species of Allium native to both the New and the Old Worlds. The name of the species derives from the Greek skhoínos and práson. Its English name, chives, derives from the French word cive, from cepa, the Latin word for onion. Chives are a commonly used herb and can be found in grocery stores or grown in home gardens. In culinary use, the scapes are diced and used as an ingredient for fish, potatoes, soups, and other dishes. Chives have insect-repelling properties that can be used in gardens to control pests.
The lentil (Lens culinaris) is an edible pulse. It is a bushy annual plant of the legume family, grown for its lens-shaped seeds. It is about 40 cm (16 in) tall and the seeds grow in pods, usually with two seeds in each.
Source
Compound data linked to PubChem CID 1148, public domain via NCBI. Culinary context + ingredient mappings are maintained by Foodgeist's enrichment fleet and continuously re-matched by the pairings engine. PubChem CID 1148