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Eriobotrya Japonica (eriobotrya + japonica)
Selected AbstractsSeasonality and host utilization of the invasive fruit fly, Bactrocera invadens (Dipt., Tephritidae) in central TanzaniaJOURNAL OF APPLIED ENTOMOLOGY, Issue 9-10 2006M. W. Mwatawala Abstract:, The temporal occurrence of the invasive and economically important pest fruit fly, Bactrocera invadens was studied in three agro-ecological areas of Morogoro Region, central Tanzania, during 2004,2005. Weekly and monthly trappings were carried out with methyl eugenol, protein bait and synthetic food attractant. Bactrocera invadens was permanently present at low and mid-altitudes (380,520 m a.s.l.) with peak periods coinciding with the fruiting season of mango (Mangifera indica) and guava (Psidium guajava). At high altitude (1650 m a.s.l.) its incidence was only temporal and apparently the result of dispersal from lower altitudes after the mango fruiting season. Rearing results showed mango, loquat (Eriobotrya japonica), guava and grapefruit (Citrus × paradisi) to be the favoured commercial host fruits. Other Citrus species, cucurbits, papaya (Carica papaya) and avocado (Persea americana) were less favoured. [source] Identification of ,-glucosidase inhibitors from a new fermented tea obtained by tea-rolling processing of loquat (Eriobotrya japonica) and green tea leavesJOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE, Issue 9 2010Asami Toshima Abstract BACKGROUND: A new fermented tea produced by tea-rolling processing of loquat (Eriobotrya japonica) leaf with green tea leaf (denoted as LG tea) showed a potent antihyperglycaemic effect in maltose-loaded rats. The aim of this study, therefore, was to identify ,-glucosidase inhibitors in the antihyperglycaemic tea product. RESULTS: LG tea had a threefold higher maltase-inhibitory activity (IC50 0.065 mg dried extract mL,1) than either the constituent loquat leaf or green tea alone. In addition, LG tea favourably inhibited maltase action rather than sucrase action. As a result of bio-guided high-performance liquid chromatography separations of LG tea, theasinensin A, theasinensin B, strictinin and 1,6-digalloylglucose were newly identified as maltase inhibitors with IC50 values of 142, 225, 398 and 337 µmol L,1 respectively, along with previously identified catechins and theaflavins. CONCLUSION: Judging from the magnitude of the ,-glucosidase-inhibitory contribution of each isolated compound to the overall inhibition of LG tea, catechins were the main candidates responsible for ,-glucosidase or maltase inhibition in LG tea, followed by theaflavins, theasinensins, strictinin and 1,6-digalloylglucose. Copyright © 2010 Society of Chemical Industry [source] Control of purple spot of loquat fruit (Eriobotrya japonica) by means of mineral compoundsANNALS OF APPLIED BIOLOGY, Issue 4 2005N GARIGLIO Summary Treatments to control purple spot of loquat fruit (Eriobotrya japonica) were tested based on the hypothesis that the disorder appears as a consequence of water unbalance between flesh and epidermal tissues caused by their different ability for sugar accumulation. Calcium nitrate, calcium chloride, Ca-EDTA, ammonium nitrate and potassium nitrate at a concentration of 150 mm applied 2 weeks before fruit colour break reduced significantly the proportion of purple-spotted fruit, giving rise to a reduction of water potential of the epidermal tissue that allows it to retain water. The most favourable date of treatment was during the 2 weeks prior to fruit colour break. [source] | ||||||||||