Honey enriched mango nectar was prepared by using honey as sweetening agent because of its high fructose and glucose content and medicinal properties. The nectar having 20 % pulp, 15°B TSS and 0.30 % acidity was prepared, filled in pre-sterilized glass bottles, heat processed and stored up to 6 months under ambient (13.3-26.3 °C and 44.5-81.0 % RH) and refrigerated (4-7 °C and 73 % RH) conditions. The honey enriched mango nectar could be stored for 6 months at ambient temperature and low temperature storage conditions and only little changes in the quality parameters viz., TSS, titratable acidity, ascorbic acid, total and reducing sugars, carotenoids and hydroxymethylfurfural (HMF) were recorded as compared to sugar based nectar. These changes were more under ambient conditions than refrigerated and no microbial growth was found in nectars at fresh stage and during storage up to 6 months. The hydroxymethylfurfural (HMF) content in the mango nectars increased with prolonged storage period. The mustard honey based mango nectar had the higher carotenoids content but this decreased (725.60-689.20 mg/100 ml) during storage up to 6 months under ambient storage conditions, whereas the decrease was less under refrigerated storage conditions. Organoleptic quality score was higher in mustard honey based mango nectar (6.8) as compared to sugar based mango nectar under refrigerated conditions after 6 months storage. The results indicated that the mustard honey based mango nectar stored at low temperature was acceptable with respect to colour, taste and overall acceptability without any microbial spoilage and could be marketed as health drink.
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http://dx.doi.org/10.1007/s13197-013-1122-8 | DOI Listing |
Braz J Biol
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Universidad Nacional de Huancavelica, Huancavelica, Perú.
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March 2023
ICMR-National Institute of Malaria Research, Sector 8, Dwarka, New Delhi, 110 077, India.
Background: Attractive toxic sugar bait (ATSB) is a promising "attract and kill"-based approach for mosquito control. It is a combination of flower nectar/fruit juice to attract the mosquitoes, sugar solution to stimulate feeding, and a toxin to kill them. Selecting an effective attractant and optimizing concentration of toxicant is significant in the formulation of ATSB.
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March 2023
Department of Pharmacology, UT Southwestern Medical Center, Dallas, TX 75390, USA; Department of Molecular Biology, UT Southwestern Medical Center, Dallas, TX 75390, USA. Electronic address:
Animals that consume fermenting fruit and nectar are at risk of exposure to ethanol and the detrimental effects of inebriation. In this report, we show that the hormone FGF21, which is strongly induced by ethanol in murine and human liver, stimulates arousal from intoxication without changing ethanol catabolism. Mice lacking FGF21 take longer than wild-type littermates to recover their righting reflex and balance following ethanol exposure.
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February 2022
IATE, INRA, Institut AGRO, University Montpellier, 34090 Montpellier, France.
The effects of hydrostatic (HHP) and dynamic (HPH) high-pressure treatments on the activity of pectin methylesterase (PME) and polyphenol oxidase (PPO) as well as the physicochemical quality attributes of 'Ataulfo' mango nectar were assessed. HHP reduced PME relative activity by 28% at 100 MPa for 5 min but increased PPO activity almost five-fold. Contrarily, HPH did not affect PME activity, but PPO was effectively reduced to 10% of residual activity at 300 MPa and at three passes.
View Article and Find Full Text PDFBull Entomol Res
February 2022
Department of Agronomy, University of Almería, ceiA3, La Cañada de San Urbano s/n, 04120, Almería, Spain.
The hoverfly Eristalinus aeneus is an important pollinator of crops and wild plants. However, there is a lack of detailed information about its foraging behaviour and its potential as a managed pollinator of mango. Given the growing economic importance of protected cultivation of mango, our aim is to study the flight activity and foraging behaviour of E.
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