Journal ArticleDOI
Biological activity of astilbin from Dimorphandra mollis against Anticarsia gemmatalis and Spodoptera frugiperda
Luciane G Batista Pereira,Fernando Petacci,João B. Fernandes,Arlene G. Corrêa,Paulo C. Vieira,M. Fátima das G. F. da Silva,Osmar Malaspina +6 more
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TLDR
Astilbin was isolated in high yield from Dimorphandra mollis, and its insecticidal and growth inhibiting activity by stomach ingestion were evaluated against Anticarsia gemmatalis and Spodoptera frugiperda as discussed by the authors.Abstract:
Astilbin was isolated in high yield from Dimorphandra mollis, and its insecticidal and growth inhibiting activity by stomach ingestion were evaluated against Anticarsia gemmatalis and Spodoptera frugiperda. The insecticidal activity of astilbin, the weight reduction of the larval phase and the prolongation of the larval and pupal phases were verified for both species. Astilbin was identified on the base of its NMR, MS and physical data.read more
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Nutritional indices of Helicoverpa armigera (Lep.: Noctuidae) on seeds of five host plants
TL;DR: In this study, the nutritional indices of Helicoverpa.
Journal ArticleDOI
Identification of astilbin metabolites produced by human intestinal bacteria using UPLC-Q-TOF/MS: Astilbin metabolites produced by human intestinal bacteria
Journal ArticleDOI
PVP and surfactant combined carrier as an effective absorption enhancer of poorly soluble astilbin in vitro and in vivo.
TL;DR: It was found that PVP K30 and Tween 80 promoted the permeability of drugs best within a certain amount and had a strong potential to improve oral bioavailability for astilbin.
Journal ArticleDOI
Microbial production of astilbin, a bioactive rhamnosylated flavanonol, from taxifolin
Nguyen Huy Thuan,Sailesh Malla,Nguyen Thanh Trung,Dipesh Dhakal,Anaya Raj Pokhrel,Luan Luong Chu,Jae Kyung Sohng +6 more
TL;DR: The production of astilbin (ATN) from taxifolin (TFN) in genetically-engineered Escherichia coli BL21(DE3) was reported for establishing ATN as potent antitumor compound and the cytotoxic effect ofTaxifolin-3-O-rhamnoside on PANC-1 and A-549 cancer cell lines was assessed.
Journal ArticleDOI
Nutritional indices and midgut enzymatic activity of Phthorimaea operculella (Lepidoptera: Gelechiidae) larvae fed different potato germplasms.
TL;DR: It is concluded that Morene was the most unsuitable host for P. operculella and the highest proteolytic and amylolytic activities of the larvae, at optimal pH were in Morene.
References
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TL;DR: It is argued that physicochemical conditions of the environment that control phenolic oxidation generate variation in ecological activity and that experiments must be designed with conditions appropriate to the biochemical mode of phenolic action.
Book ChapterDOI
Herbivores and Plant Tannins
TL;DR: The chapter concludes with an overview and summary of potential roles of tannins in plants other than defensive activity against herbivores, and suggestions for research needs.
Journal ArticleDOI
Flavonoids from Hypericum perforatum show antidepressant activity in the forced swimming test.
TL;DR: The validity of a flavonoid fraction obtained from a crude extract of Hypericum perforatum was checked in open field experiments and in the FST after 12 days of daily treatment to exclude false positive results.
Journal ArticleDOI
Toxicity of tomato phenolic compounds to the fruitworm, heliothis zea
Murrey B. Isman,Sean S. Duffey +1 more
TL;DR: In this paper, the authors found that chlorogenic acid and rutin, major phenolic constituents of tomato foliage, as well as a phenolic-rich aqueous extract of tomato leaves, inhibit early larval growth of Heliothis zea, when added to an artificial diet for this insect.
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Growth inhibitory effects on fall armyworm Spodoptera frugiperda of some limonoids isolated from Cedrela spp. (Meliaceae).
TL;DR: All the tested compounds except cedrelanolide showed comparable activity to that of toosendanin, and all the compounds tested inhibited larval growth, compared to the control, in a concentration-dependent manner.