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Delphinidine
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 variety 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-glucoside) is respon ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nasunin
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 variety 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-glucoside) ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anthocyanidin
Anthocyanidins are common plant pigments, the aglycones of anthocyanins. They are based on the flavylium cation, an oxonium ion, with various groups substituent, 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 blueberry, blueberries), flowers (like roses), leaves (like purple cabbage), and even tubers (like radishes and purple yams). They are also found in some ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Acid
An acid is a molecule or ion capable of either donating a proton (i.e. Hydron, hydrogen cation, H+), known as a Brønsted–Lowry acid–base theory, Brønsted–Lowry acid, or forming a covalent bond with an electron pair, known as a Lewis acid. The first category of acids are the proton donors, or Brønsted–Lowry acid–base theory, Brønsted–Lowry acids. In the special case of aqueous solutions, proton donors form the hydronium ion H3O+ and are known as Acid–base reaction#Arrhenius theory, Arrhenius acids. Johannes Nicolaus Brønsted, Brønsted and Martin Lowry, Lowry generalized the Arrhenius theory to include non-aqueous solvents. A Brønsted–Lowry or Arrhenius acid usually contains a hydrogen atom bonded to a chemical structure that is still energetically favorable after loss of H+. Aqueous Arrhenius acids have characteristic properties that provide a practical description of an acid. Acids form aqueous solutions with a sour taste, can turn blue litmus red, and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clitoria Ternatea
''Clitoria'' is a genus of mainly tropical and subtropical, insect-pollinated flowering pea vines. Taxonomy Naming of the genus This genus was named after the human clitoris, for the flowers bear a resemblance to the vulva. 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'. Many vernacular names of these flowers in different languages are similarly based on references to female external genitalia. Controversies existed in the past among botanists regarding the good taste of the naming of the genus. The analogy drew sharp criticism from botanists such as James Edward Smith in 1807, Amos Eaton in 1817, Michel Étienne Descourtilz in 1826, and Eaton and Wright in 1840. Some less explicit alternatives, like ''Vexillaria'' (Eaton 1817) and ''Nauchea'' (Descourtilz 1826), were proposed, but they ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eggplant
Eggplant (American English, US, Canadian English, CA, Australian English, AU, Philippine English, PH), aubergine (British English, UK, Hiberno English, IE, New Zealand English, NZ), brinjal (Indian English, IN, Singapore English, SG, Malaysian English, MY, South African English, ZA, Sri Lankan English, SLE), or baigan (Languages of India, IN, Caribbean English, GY) is a plant species in the Solanaceae, nightshade family Solanaceae. ''Solanum melongena'' is grown worldwide for its edible fruit, typically used as a vegetable in cooking. Most commonly purple, the spongy, absorbent fruit is used in List of cuisines, several cuisines. It is a berry (botany), berry by botany, botanical definition. As a member of the genus ''Solanum'', it is related to the tomato, chili pepper, and potato, although those are of the Americas region while the eggplant is of the Eurasia region. Like the tomato, its skin and seeds can be eaten, but it is usually eaten cooked. Eggplant is nutritionally ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aconitum Chinense
''Aconitum'' (), also known as aconite, monkshood, wolfsbane, leopard's bane, devil's helmet, or blue rocket, is a genus of over 250 species of flowering plants belonging to the family Ranunculaceae. These herbaceous perennial plants are chiefly native to the mountainous parts of the Northern Hemisphere in North America, Europe, and Asia, growing in the moisture-retentive but well-draining soils of mountain meadows. Most ''Aconitum'' species are extremely poisonous and must be handled very carefully. Several ''Aconitum'' hybrids, such as the Arendsii form of ''Aconitum carmichaelii'', have won gardening awards—such as the Royal Horticultural Society's Award of Garden Merit. Some are used by florists. Etymology The name ''aconitum'' comes from the Greek word , which may derive from the Greek ''akon'' for dart or javelin, the tips of which were poisoned with the substance, or from ''akonae'', because of the rocky ground on which the plant was thought to grow. The Greek nam ... [...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 variety Cab .... References {{Anthocyanidin Anthocyanins ... [...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. 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 juice market. The fruit is also used to make alcoholic beverages and dyes. Description ''Ribes nigrum'' is a medium-sized shrub, growing to . The leaves are alternate, simple, broad and lon ... [...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 (American English, US, Canadian English, CA, Australian English, AU, Philippine English, PH), aubergine (British English, UK, Hiberno English, IE, New Zealand English, NZ), brinjal (Indian English, IN, Singapore English, SG, Malays ...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 ... [...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 black beans, 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 (biology), family Hydrangeaceae, native plant, native and endemism, endemic to Japan. It is a deciduous shrub growing to tall by or more broad with large heads of pink or ...'' are developed from myrtillin complexes with metal ions called metalloanthocyanins. Metabolism The enzyme anthocyanin 3-O-glucoside 6''-O-hydroxycinnamoyltransferase produces delphin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Glycoside
In chemistry, a glycoside is a molecule in which a sugar is bound to another functional group via a glycosidic bond. Glycosides play numerous important roles in living organisms. Many plants store chemicals in the form of inactive glycosides. These can be activated by enzymatic, enzyme hydrolysis, which causes the sugar part to be broken off, making the chemical available for use. Many such plant glycosides are used as medications. Several species of ''Heliconius'' butterfly are capable of incorporating these plant compounds as a form of chemical defense against predators. In animals and humans, poisons are often bound to sugar molecules as part of their elimination from the body. In formal terms, a glycoside is any molecule in which a sugar group is bonded through its anomeric carbon to another group via a glycosidic bond. Glycosides can be linked by an O- (an ''O-glycoside''), N- (a ''glycosylamine''), S-(a ''thioglycoside''), or C- (a ''C-glycoside'') glycosidic bond. Accord ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Solution (chemistry)
In chemistry, a solution is defined by IUPAC as "A liquid or solid phase containing more than one substance, when for convenience one (or more) substance, which is called the solvent, is treated differently from the other substances, which are called solutes. When, as is often but not necessarily the case, the sum of the mole fractions of solutes is small compared with unity, the solution is called a dilute solution. A superscript attached to the ∞ symbol for a property of a solution denotes the property in the limit of infinite dilution." One important parameter of a solution is the concentration, which is a measure of the amount of solute in a given amount of solution or solvent. The term " aqueous solution" is used when one of the solvents is water. Types ''Homogeneous'' means that the components of the mixture form a single phase. ''Heterogeneous'' means that the components of the mixture are of different phase. The properties of the mixture (such as concentration, temp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
