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Delphinidin
Delphinidin (also delphinidine) is an anthocyanidin, a primary plant pigment, and also an antioxidant. Delphinidin gives blue hues to flowers in the genera ''Viola'' and ''Delphinium''. It also gives the blue-red color of the grape that produces Cabernet Sauvignon, and can be found in cranberries and Concord grapes as well as pomegranates, and bilberries. Delphinidin, like nearly all other anthocyanidins, is pH-sensitive, i.e. a natural pH indicator, and changes from blue in basic solution to red in acidic solution. Glycosides Several glycosides derived from delphinidin are known: * Myrtillin (delphinidin-3-''O''-glucoside) and tulipanin (delphinidin-3-''O''-rutinoside) can be found in blackcurrant pomace. * Violdelphin (delphinidin 3-rutinoside-7-''O''-(6-''O''-(4-(6-''O''-(4-hydroxybenzoyl)-β-D-glucosyl)oxybenzoyl)-β-D-glucoside) is responsible for the purplish-blue flower color of ''Aconitum chinense''. * Nasunin (delphinidin-3-(''p''-coumaroylrutinoside)-5-gluco ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Prodelphinidin
Prodelphinidin is a name for the polymeric tannins composed of gallocatechin. It yields delphinidin during depolymerisation under oxidative conditions. Natural occurrences Prodelphinidins are one of the two sorts of tannins in grape (the other being procyanidins) being produced especially in the skin of the berry. Prodelphinidins can be found in ''Cistus salviifolius''. Gallocatechin-(4→8)-catechin (prodelphinidin B3), gallocatechin-(4→8)-gallocatechin and catechin-(4→8)-gallocatechin can be found in the pomegranate peels. Prodelphinidin B-2 3'-O-gallate can be found in green tea leaves and prodelphinidin B-2 3,3'-di-O-gallate can be found in '' Myrica rubra''. Particular oligomeric prodelphinidins Prodelphinidin B3 (gallocatechin-(4α→8)-catechin) and prodelphinidin B9 (epigallocatechin-(4α→8)-catechin) can be isolated in beer. Prodelphinidin C2 (gallocatechin-(4α→8)-gallocatechin-(4α→8)-catechin) can be isolated in malt Malt is germinated ce ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Blackcurrant
The blackcurrant (''Ribes nigrum''), also known as black currant or cassis, is a deciduous shrub in the family Grossulariaceae grown for its edible berries. It is native to temperate parts of central and northern Europe and northern Asia, where it prefers damp fertile soils. It is widely cultivated both commercially and domestically. It is winter hardy, but cold weather at flowering time during the spring may reduce the size of the crop. Bunches of small, glossy black fruit develop along the stems in the summer and can be harvested by hand or by machine. Breeding is common in Scotland, Poland, Lithuania, Latvia, Norway, and New Zealand to produce fruit with better eating qualities and bushes with greater hardiness and disease resistance. The raw fruit is particularly rich in vitamin C and polyphenols. Blackcurrants can be eaten raw but are usually cooked in sweet or savoury dishes. They are used to make jams, preserves, and syrups and are grown commercially for the ju ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pomegranate
The pomegranate (''Punica granatum'') is a fruit-bearing deciduous shrub in the family Lythraceae, subfamily Punicoideae, that grows between tall. The pomegranate was originally described throughout the Mediterranean Basin, Mediterranean region. It was introduced into Spanish America in the late 16th century and into California by New Spain, Spanish settlers in 1769. The fruit is typically in season in the Southern Hemisphere from March to May, and in the Northern Hemisphere from September to February. As intact sarcotestas or juice, pomegranates are used in baking, cooking, juice blends, meal garnish (food), garnishes, smoothies, and alcoholic beverages, such as cocktails and wine. Pomegranates are widely cultivated throughout the Middle East and Caucasus region, North Africa, north and tropical Africa, Iran, Armenia, the Indian subcontinent, Central Asia, the drier parts of Southeast Asia, and the Mediterranean Basin. Etymology The name pomegranate derives from medie ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Myrtillin
Myrtillin is an anthocyanin. It is the 3- glucoside of delphinidin. It can be found in all green plants, most abundantly in blackcurrant, blueberry, huckleberry, bilberry leaves and in various myrtles, roselle plants, and ''Centella asiatica'' plant. It is also present in yeast and oatmeal. The sumac fruit's pericarp owes its dark red colour to anthocyanin pigments, of which chrysanthemin, myrtillin and delphinidin have yet been identified. The various colors, such as red, mauve, purple, violet, and blue in ''Hydrangea macrophylla ''Hydrangea macrophylla'' is a species of flowering plant in the family Hydrangeaceae, native to Japan. It is a deciduous shrub growing to tall by broad with large heads of pink or blue flowers in summer and autumn. Common names include biglea ...'' are developed from myrtillin complexes with metal ions called metalloanthocyanins. Metabolism The enzyme anthocyanin 3-O-glucoside 6''-O-hydroxycinnamoyltransferase produces delphinidin 3-(6-p-c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clitoria Ternatea
''Clitoria ternatea'', commonly known as Asian pigeonwings, bluebellvine, blue pea, butterfly pea, cordofan pea or Darwin pea is a plant species belonging to the family Fabaceae, endemic and native to the Indonesian island of Ternate. In India, it is revered as a holy flower, used in daily puja rituals. Etymology The genus name of ''Clitoria'' is a direct translation from the local name of these plant in the Ternate language; which called as , literally means "clitoris" due to its shape that resembles the shape of human female genitals. The first reference to the genus, which includes an illustration of the plant, was made in 1678 by Jakób Breyne, a Polish naturalist, who described it as ''Flos clitoridis ternatensibus'', meaning ' Ternatean flower of the clitoris'. Meanwhile on the other hand, the species name is derived from the name of the island where these Linnaeus's specimens originated; which is the Ternate Island located in northern part of the Maluku Islands. Dis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Violdelphin
Violdelphin is an anthocyanin, a plant pigment, has been found in the purplish blue flower of '' Aconitum chinense'', in the blue flowers in the genus ''Campanula'' and in the blue flowers of ''Delphinium hybridum''.Structure of Violdelphin, an Anthocyanin from Violet Flower of Delphinium hybridum. Tadao Kondo, Kaori Oki, Kumi Yoshida and Toshio Goto, Chemistry Letters,1990, Vol. 19, No. 1, pages 137-138, It is a flavenoid natural product, incorporating two p-hydroxy benzoic acid residues, one rutinoside and two glucosides associated with a delphinidin Delphinidin (also delphinidine) is an anthocyanidin, a primary plant pigment, and also an antioxidant. Delphinidin gives blue hues to flowers in the genera ''Viola'' and ''Delphinium''. It also gives the blue-red color of the grape that produc .... References {{Anthocyanidin Anthocyanins ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tulipanin
Tulipanin is an anthocyanin. It is the 3-O-rutinoside of delphinidin. It can be found in ''Alstroemeria spp.'', ''Berberis spp.'', '' Cissus sicyoides'', '' Hymenocallis spp.'', ''Manihot utilissima'', '' Meliosma tenuis'', ''Musa acuminata'', '' Ophiopogon japonicus'', ''Petunia exserta'', '' Petunia reitzii'', blackcurrant (''Ribes nigrum''), '' Schismatoglottis concinna'', ''Secale cereale'', '' Solanum betaceum'', ''Thaumatococcus daniellii'', ''Tulipa spp'' and in eggplant Eggplant ( US, Canada), aubergine ( UK, Ireland) or brinjal (Indian subcontinent, Singapore, Malaysia, South Africa) is a plant species in the nightshade family Solanaceae. ''Solanum melongena'' is grown worldwide for its edible fruit. Mo ...s.Structures and Antioxidant Activity of Anthocyanins in Many Accessions of Eggplant and Its Related Species. Keiko Azuma, Akio Ohyama, Katsunari Ippoushi, Takashi Ichiyanagi, Atsuko Takeuchi, Takeo Saito and Hiroyuki Fukuoka, J. Agric. Food Chem., 2008, 56 (21) ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bilberry
Bilberries (), or sometimes European blueberries, are a primarily Eurasian species of low-growing shrubs in the genus '' Vaccinium'' (family Ericaceae), bearing edible, dark blue berries. The species most often referred to is '' Vaccinium myrtillus'' L., but there are several other closely related species. Etymology and common names The name "bilberry" appears to have a Scandinavian origin, possibly from as early as 1577, being similar to the Danish word ''bølle'' for whortleberry with the addition of "berry". In Scandinavian languages bilberries have names that translate to "blueberry": ''blåbär'' in Swedish and ''blåbær'' in Danish and Norwegian. The bilberry (especially '' Vaccinium myrtillus'') is also known by a number of other names including blaeberry in Scottish and Northern English regional dialects and the Scots language, whortleberry in southern England, and w(h)imberry or w(h)inberry in Derbyshire, Lancashire, along the Anglo-Welsh border, and south ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anthocyanidin
Anthocyanidins are common plant pigments, the sugar-free counterparts of anthocyanins. They are based on the flavylium cation, an oxonium ion, with various groups substituted for its hydrogen atoms. They generally change color from red through purple, blue, and bluish green as a function of pH. Anthocyanidins are an important subclass of the polymethine dyes and flavonoids. The flavylium cation is a chromenylium cation with a phenyl group substituted in position 2; and chromenylium (also called benzopyrylium) is a bicyclic version of pyrylium. The positive charge can move around the molecule. At least 31 monomeric anthocyanidins have been properly identified in living organisms, mostly as the core components of anthocyanins. The latter are responsible for the red, purple, blue, or black color of many fruits (like grapes and blueberries), flowers (like roses), leaves (like purple cabbage), and even tubers (like radishes and purple yams). They are also found in some ani ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Concord Grapes
The Concord grape is a cultivar derived from the grape species '' Vitis labrusca'' (also known as fox grape) that are used as table grapes, wine grapes and juice grapes. They are often used to make grape jelly, grape juice, grape pies, grape-flavored soft drinks, and candy. The grape is sometimes used to make wine, particularly sacramental and kosher wine. Traditionally, most commercially produced Concord wines have been finished sweet, but dry versions are possible if adequate fruit ripeness is achieved. The grape is named after the town in Massachusetts where it was developed. The skin of a Concord grape is typically dark blue or purple, and often is covered with a glaucous epicuticular wax "bloom" that can be rubbed off. It is a slip-skin variety, meaning that the skin is easily separated from the fruit. Concord grapes have large seeds and are highly aromatic. The Concord grape is particularly prone to the physiological disorder black spot. In the United States 417 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cranberry
Cranberries are a group of evergreen dwarf shrubs or trailing vines in the subgenus ''Oxycoccus'' of the genus '' Vaccinium''. In Britain, cranberry may refer to the native species '' Vaccinium oxycoccos'', while in North America, cranberry may refer to ''Vaccinium macrocarpon''. ''Vaccinium oxycoccos'' is cultivated in central and northern Europe, while ''Vaccinium macrocarpon'' is cultivated throughout the northern United States, Canada and Chile. In some methods of classification, ''Oxycoccus'' is regarded as a genus in its own right. They can be found in acidic bogs throughout the cooler regions of the Northern Hemisphere. Cranberries are low, creeping shrubs or vines up to long and in height; they have slender, wiry stems that are not thickly woody and have small evergreen leaves. The flowers are dark pink, with very distinct ''reflexed'' petals, leaving the style and stamens fully exposed and pointing forward. They are pollinated by bees. The fruit is a berry th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Natural PH Indicator
A pH indicator is a halochromic chemical compound added in small amounts to a solution so the pH (acidity or basicity) of the solution can be determined visually or spectroscopically by changes in absorption and/or emission properties. Hence, a pH indicator is a chemical detector for hydronium ions (H3O+) or hydrogen ions (H+) in the Arrhenius model. Normally, the indicator causes the color of the solution to change depending on the pH. Indicators can also show change in other physical properties; for example, olfactory indicators show change in their odor. The pH value of a neutral solution is 7.0 at 25°C ( standard laboratory conditions). Solutions with a pH value below 7.0 are considered acidic and solutions with pH value above 7.0 are basic. Since most naturally occurring organic compounds are weak electrolytes, such as carboxylic acids and amines, pH indicators find many applications in biology and analytical chemistry. Moreover, pH indicators form one of the three m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
