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resin/solanum tuberosum
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Pagina 1 a partire dal 52 risultati
The resin glycosides from the sweet potato (Ipomoea batatas L. LAM.).
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Four new and two known ether-soluble resin glycosides were isolated from popular sweet potato (the roots of Ipomoea batatas L. LAM., Kokei 14 go, Convolvulaceae) in Japan. Unlike ester-type dimers, batatins I and II, obtained from other sweet potato (Ipomoea batabas var. batatas), the glycosides
Resin glycosides from the yellow-skinned variety of sweet potato (Ipomoea batatas).
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Native to tropical America, Ipomoea batatas has been cultivated for over 5000 years in Mexico. The yellow-skinned tuber crop variety, with an orange flesh, has a higher nutritional value than potato. Raw sweet potato can cause a purge due to its resin glycoside content. Purification of the
Three new pentasaccharide resin glycosides from the roots of sweet potato (Ipomoea batatas).
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Three new pentasaccharide resin glycosides, batatosides III-V (1-3), were isolated from the roots of Sweet potato (Ipomoea batatas). Saponification of the crude resin glycoside mixture yielded substituents and simonic acid B. The structures of the isolated compounds (1-3) were established through
Batatinosides II-VI, acylated lipooligosaccharides from the resin glycosides of sweet potato.
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Sweet potato ( Ipomoea batatas) belongs to the Convolvulaceae (morning glory family) and is native to Mexico and Central America. Its edible tuberous roots have been much appreciated since pre-Hispanic times in Mesoamerica and now play an important role as a basic diet staple and a medicinal plant
Preparative purification of polyphenols from sweet potato (Ipomoea batatas L.) leaves by AB-8 macroporous resins.
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In this study, the adsorption properties of AB-8 macroporous resin for sweet potato leaf polyphenols was investigated. The adsorption mechanism was elaborated by the Langmuir and Freundlich equations, and the purification parameters were optimised by adsorption and desorption tests. The constituents
Batatins I and II, ester-type dimers of acylated pentasaccharides from the resin glycosides of sweet potato.
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Batatins I (1) and II (2), two ester-type dimers of acylated pentasaccharides, have been isolated by recycling HPLC from the hexane-soluble extract of sweet potato (Ipomoea batatas var. batatas). The structures were elucidated by a combination of high-resolution NMR spectroscopy and mass
Starvation induced stress and the susceptibility of the Colorado potato beetle, Leptinotarsa decemlineata, to infection by Beauveria bassiana.
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Starvation of second instar Colorado potato beetle larvae for 24h immediately after treatment with Beauveria bassiana conidia increased susceptibility to the pathogen and subsequent sporulation of cadavers but decreased time to larval death. In feeding studies, B. bassiana-treatment had no effect on
Recombinant Cry3Aa has insecticidal activity against the Andean potato weevil, Premnotrypes vorax.
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The Andean potato weevil, Premnotrypes vorax, an insect of the order Coleoptera, is a major cause of damage to potato crops in the Andean regions of South America. The insecticidal Cry proteins from Bacillus thuringiensis are useful biological pesticides, and some are toxic to Coleopteran insects.
11beta-Hydroxylation of Cortexolone (Reichstein Compound S) to Hydrocortisone by Curvularia lunata Entrapped in Photo-Cross-Linked Resin Gels.
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Spores of Curvularia lunata were immobilized by entrapment with photo-cross-linkable resin prepolymers and incubated to form mycelium in potato dextrose broth containing cortexolone (Reichstein compound S) as an inducer of steroid 11beta-hydroxylase. In a buffer system containing 2.5% dimethyl
Pentasaccharide glycosides from the tubers of sweet potato (Ipomoea batatas).
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Sweet potato ( Ipomoea batatas) has been used as food and herb in many countries. In this research on the active constituents of sweet potato, nine compounds were isolated and identified, including seven new resin glycosides, batatosides A-G (1- 7), along with two known compounds, batatinoside I (
RNA extraction from virus-diseased sweet potato for reverse transcriptase polymerase chain reaction analysis.
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Sweet potato virus disease (SPVD), which causes severe crop losses in Africa, is caused by a complex of sweet potato feathery mottle potyvirus (SPFMV) and sweet potato chlorotic stunt crinivirus (SPCSV). Extraction of pure RNA (for diagnosis by reverse transcriptase polymerase chain reaction
Effect of nitrogen on resistance of sweet potato to sweetpotato weevil (Coleoptera: Curculionidae) and on storage root chemistry.
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The effects of nitrogen fertilizer on sweet potato, Ipomoea batatas (L.) Poir., resistance to the sweetpotato weevil, Cylas formicarius elegantulus (Summers), was studied. Adult weevil feeding and oviposition preference, larval survival, and pupal weight were used as measures of sweet potato
In vivo antioxidant, hypoglycemic, and anti-tumor activities of anthocyanin extracts from purple sweet potato.
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Anthocyanin from purple sweet potato (PSP) extracted by microwave baking (MB) and acidified electrolyzed water (AEW) exhibited antioxidant activity. After further purification by macroporous AB-8 resin, the color value of PSP anthocyanin (PSPA) reached 30.15 with a total flavonoid concentration of
Marginal integrity of aesthetic restorations following intracoronal bleaching with sweet potato extract as an additive: An SEM study.
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The aim of this in vitro study was to evaluate the marginal integrity of an alkasite restoration in comparison to that of a conventional composite resin restoration following intra-coronal bleaching with 30% hydrogen peroxide (HP) containing sweet potato extract (SPE) as an additive. Access
Molecular cloning, functional expression, and tissue distribution of a potato sprout allene oxide synthase involved in a 9-lipoxygenase pathway.
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Potato (Solanum tuberosum) plants are rich in 9-lipoxygenase, which converts linoleic acid and alpha-linolenic acid to 9S-hydroperoxy-10E,12Z-octadecadienoic acid (9-HPOD) and 9S-hydroperoxy-10E,12Z,15Z-octadecatrienoic acid (9-HPOT) respectively. The allene oxide synthase (AOS) involved in
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