1. Chemical components of mangosteen peel, looking for biologically active natural products. Methods: Use normal-phase silica gel, reverse-phase RP-18 and other column chromatography to separate compounds, and use spectroscopic technology to analyze and determine the chemical structure. As a result, 7 compounds were completely isolated and identified from the mangosteen peel extract. They were determined by spectrum analysis to be: α-mangostin (1), β-mangostin (2), and gartanin (3). 8-deoxygartanin (4), β-sitosterol (5), tetrahydrothwaitesixanthone (6), and rutin (7). Conclusion The compounds β-sitosterol (5), tetrahydrothwaitesixauthone (6), and rutin (7) were obtained from Mang for the first time. Isolated from the peel of persimmon.
2. Chemical composition of sea buckthorn peel. Methods: Silica gel column chromatography and Sephadex L H-20 column chromatography were used for separation, and the structure was identified through physical and chemical constant measurement and spectroscopic technology. Results: Two steroid compounds were isolated and identified from Chinese sea buckthorn peel: oleanolic acid and ursolic acid.
Conclusion Oleanolic acid and ursolic acid are obtained from this plant for the first time
3. Chemical composition of apple peel. The fruit contains L-malic acid (L-malic acid), fumaric acid (fumaric acid), amber Succinic acid, pyruvic acid, glyoxylic acid, oxalacetic acid, 2-ketoglutaric acid, glucose, fructose , sucrose, tartaric acid, oxalic acid, citric acid, uronic acid, isocitric acid, 3-indoleacetic acid (3- indole acetic acid), glutamic acid, polyphenoloxidase, valine, ornithine, lysine, cysteine, Norvaline, aspartic acid, β-phenyl-β-alanine, histidine, tryptophane ), glycine, vitamin C (ascorbic acid), ethanol (ethyl alcohol), n-propylalchol (n-propylalchol), n-butyl alcohol (n-butyl alcohol), isobutyl alcohol (isobutyl alcohol), n-amyl alcohol (n-amyl alcohol), n-hexyl acohol, (-)-2-methyl-2-butanol [(-)-2-methyl-2-butanol] 3-hexenal (3 -hexenal), n-propyl acetate, n-butyl acetate, amyl acetate (n-amyl acetate), n-hexyl acetate, ethyl acetate caproate), formaldehyde, acetaldehyde, n-propionaldehyde, n-butylaldehyde, 2-hexenal, nonylaldehyde, iso Isovaleric acid, caproic acid, benzoic acid, hyperin, idaein, pectinic acid, arabinan arabinan), galactan, cyanidin-7-arabinoside, cyanidin-3-galactoside, cornflower Cyanidin-3-arabinoside.
The peel contains chlorophyll A and B, pheophytin, carotenes, xanthophylls, quercetin, and quercitrin. , cyanidin-3-galactoside, cyanidin-3-glucoside (cyanidin-3-glucoside), cyanidin-3-arabinoside, cyanidin-3-xyloside (cyanidin-3-xyloside), 4-(5ˊ-hydroxyphlorizin-2ˊ-yl)phlorizin [4-(5ˊ-hydroxyphlorizin-2ˊ-yl)phlorizin], rutin (ritin), hyperin (hyperin), quercitrin, quercetin glucoside, anthocyanin, 20-β-hydroxy ursolic acid 2εˊ, 20β-dihydroxy Ursolic acid (2εˊ, 20β-dihydroxyursolic acid).
Seed oil content is 22.1-31. The main fatty acids in seed oil are palmitic acid, stearic acid, arachidic acid, and hexadecenoic acid. Oleic acid, linoleic acid, linolenic acid, eicosenoic acid, eicosadienoic acid, nondecanoic acid acid), heneicosanoec acid, behenic acid.
The seeds contain pectin, glutamic acid, aspartic acid, asparagine, proline, threonine, arginine, and serine (serine), cystine, valine, leucine, tryptophan, tyrosine, phenylalanine, (alanine), sterol, Cholesterol, progesterone.
The core contains chlorogenic acid and phlorizin.
Pollen contains cycloartenol, cyanidin-3-galactoside, and cyanidin-3-glucoside.
Juice contains sorbitol, mannitol, glycerol 2,3-butylene glycol.
Wood contains vanillin, syringaldehyde, and p-hydroxybenzaldehyde.
The bark contains β-sitosterol, friedelin, epifriedelinol, cis-4-hydroxymethyl-L-proline (cis-4-hydroxy methyl-L-proline).
The aboveground parts without flower buds contain arginine, asparagine, and glutamine.
The plant contains (-)-epicatechin [(-)-epicatechin], (+)-catechin [(+)-catechin], and squalene.
Buds contain aspartic acid, γ-aminobutyric acid, asparagine, serine, and glutamine.
Xylem sap contains pomolic acid, pomonic acid, vanguerin, tomentosolic acid, and vanguerin. Vanguerolic acid, phloretic acid, phloroglucinol, p-, o-coumaric acid.
4. More than 30 types of human health-care substances contained in citrus fruits have been isolated so far, among which the main ones are: flavonoids, monoterpenes, coumarins, carotenoids, propanols, Acridone, glycerol, glycolipid, etc.
Flavonoids: There are three types of flavonoids contained in citrus fruits: type I is general flavonoids represented by rutin; type II is orange peel Flavanones unique to citrus fruits such as glycosides and naringin; Type III are special flavonoids containing polymethoxy groups such as citrus flavonoids that have not yet been found in other vegetables and fruits but are only found in citrus.
Carotenoids: As we all know, many vegetables and fruits contain carotenoids, which play an important role in human health. Research on the physiological functions and mechanisms of carotenoids has developed rapidly in recent years. my country has also developed some health foods using these substances and achieved industrial production.
Coumarin: Coumarin contained in citrus is an anti-cancer substance that has been fully recognized by scientists. Research results show that there are two main ways to form the anti-cancer function of coumarin: first, coumarin detoxifies cancer substances through the action of detoxification enzymes; second, it antagonizes cancer substances and inhibits the activation of its metabolism. These two effects mainly produce inhibitory effects in the initial stages of cancer.
Monoterpenes and triterpenes Citrus contains a large number of terpenoids represented by (R)-limonene. Terpenes are substances that make up the unique aroma of citrus and have a calming effect on the human central nervous system. Recent studies have also confirmed that it has the effect of reducing stress and eliminating fatigue.
Limonin: Limonin is the bitter component of citrus juice drinks. The content in citrus fruits is about 100-200ppm. However, recent studies have found that limonin also has the function of inhibiting tumors.
5. Chemical composition of banana peel. Use water extraction method and alcohol extraction method to soak banana peel at room temperature for 24 hours, and then use test tube method and circular filter paper chromatography to analyze and identify its chemical composition. The results show that banana peel contains chemical components such as phenols, oils, organic acids, condensed tannins, proteins and sugars. In order to further study its antibacterial active ingredients, acetone was used to extract tannins and phenolic components in banana peels, and ether was used to extract total organic acids in banana peels. A preliminary antibacterial test was conducted using several common bacteria as test bacteria. (Measure the diameter of the inhibition zone). The results show that the antibacterial components in banana peels are mainly organic acids.
I don’t know what other fruits you want, so I’ll find these first