Results 41 to 50 of about 24,876 (250)
Molecules, 2021 The study compared the content of eight phenolic acids and four flavonoids and the antioxidant activity of six Polish varietal honeys. An attempt was also made to determine the correlations between the antioxidant parameters of the honeys and their ...
Monika Kędzierska-Matysek +5 more
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Bio‐Based Polyurethanes for Sustainable and Multifunctional Applications
Advanced Science, EarlyView.Bio‐based polyurethanes prepared from vegetable oils, lignin, and polysaccharides have attracted increasing interest as alternatives to fossil‐derived polyurethanes. This review summarizes recent progress in their chemistry, structural engineering, and advanced applications, highlighting the roles of feedstocks, chain‐segment design, dynamic covalent ...
Xin Li +6 more
wiley +1 more source
Generation of the Camptothecin Scaffold by a Flavin‐Catalyzed Photooxidative Skeletal Reorganization
Angewandte Chemie, EarlyView.The biosynthetic pathway of the anticancer drug precursor camptothecin involves an enigmatic skeletal reorganization from a 6/5/6 tetrahydro‐β‐carboline to a 6/6/5 pyrroloquinoline ring system. Here, we show that this transformation can be achieved by photooxidation with flavin cofactors, such as flavin mononucleotide (FMN) as catalysts.
Shenyu Liu +6 more
wiley +2 more sources
Pollen Foraging by Honey Bees (Apis Mellifera L.) in Greece: Botanical and Geographical Origin
Journal of Apicultural Science, 2014 Pollen is very important for honey bee colony development and nutrition. It is also a valuable product for human consumption, considered to have high nutritional value.
Dimou Maria +3 more
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Brazilian Red Propolis—Chemical Composition and Botanical Origin [PDF]
Evidence-Based Complementary and Alternative Medicine, 2006 Propolis contains resinous substances collected by honey bees from various plant sources and has been used as a traditional folk medicine since ca 300 BC. Nowadays, the use of evidence‐based complementary and alternative medicine (CAM) is increasing rapidly and so is the use of propolis in order to treat or support the treatment of various diseases ...
Daugsch, Andreas +3 more
openaire +2 more sources
Rainfall Shapes the Diversity of Soil Nitrogen‐Fixing Microorganisms Worldwide
Advanced Science, EarlyView.This study reveals the distinctive pattern and mechanism of rainfall driving the global biodiversity and biogeography of soil potential N‐fixing microorganisms, and constructs the theoretical framework. The results guide us on how to maintain ecosystem productivity under future climate changes (e.g., whether a specific region needs more N fertilizers ...
Bin Hua +18 more
wiley +1 more source
Bothalia: African Biodiversity & Conservation, 1989 NEW BOTANICAL PERSPECTIVES ON THE ORIGIN OF THE RAPHIA PALMS AT ...
G. D. Peckham, F. A. van Jaarsveld
doaj +1 more source
AgriFood: Journal of Agricultural Products for Food, EarlyView.Methyl salicylate and sorbitol were taken as coating agents. Caenorhabditis elegans was taken as an animal model. The coated agents were applied in C. elegans. The life span study in C. elegans proves the authenticity of MS and SL. MS and SL extended the post‐harvest life of cucumber for 14 days.
Chirayu H. Trivedi +3 more
wiley +1 more source
Physicochemical characteristics of bee pollen collected from Virovitica-Podravina County
Croatian Journal of Food Science and Technology, 2023 Pollen grains are located on the anthers of the flowers, bees collect them and mix them with secretions from their salivary glands and nectar and carry them to the hives in the baskets situated on their hind legs.
Nela Drača +2 more
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Molecules, 2022 Despite unifloral honeys from Sardinia, Italy, being appreciated worldwide for their peculiar organoleptic features, their elemental signature has only partly been investigated.
Andrea Mara +11 more
doaj +1 more source