The aim of this chapter is to describe the principal families of compounds present in honey and the analytical methods employed for their analysis, as well as to review the utility of those chemical components to discriminate honeys according to their origin....
Honey is a consumer-preferred, highly esteemed natural product with a broad variety of distinct bioactive components. In recent days, the consumption of hi... E Némedi,J Nemes,I Mirmazloum,... - 《Acta Universitatis Sapientiae Alimentaria》 被引量: 0发表: 2021年 加载更多研究...
Honey, because of its nutritional and medicinal values, is in high demand and has become one of the important commodities. However, the issue of its quality and authenticity remain as important factors in consumption and marketing of honey. To assess the possibility of discriminating honeys by the...
Generally, the known major components of propolis are aromatic acids, flavonoids, diterpenoid acids, phenolic compounds and triterpenoids. Since hon- eybees visit the flowers of different plants, these plants are the major source of organic compounds in propolis during propolis formation by honeybee ...
2.5;Effect of thermal treatment Any thermal processing of honey may contribute to product quality degeneration. Uncontrolled heating of honey may modify the essential composition of honey, destroy thermolabile honey components, influences the parameter such as enzymatic activity and hydroxymethylfurfural (HMF...
Ultrahigh performance liquid chromatography quadrupole electrostatic field orbital trap high resolution mass spectrometry (UPLC-Q-Orbitrap HRMS), bicinchoninic acid (BCA) and phenol-sulfuric acid methods were used to study the chemical components of the extract. The antioxidant capacity of the extract was...
Eleven compounds were isolated and purified from ethanol extract of Tripterygium hypoglaucum from Guizhou Province by silica gel column chromatography,Sephadex LH-20 gel column chromatography,semi-prepared HPLC and recrystallization. Their antibacterial activity were determined by 96-well plate microdilution ...
4, the pump no rotating parts and no shaft seal, diaphragm, such as the movement of the pump and pumping medium components, workpiece medium completely separated, the conveying medium will not leak out.So when pumping toxic, volatile or corrosive medium, not cause...
and the authors fractionated the hemolymph and the isolated component or components that induced oviposition. The active fraction was colorless and water soluble and gave a strong reaction to ninhydrin and Folin–phenol reagents. Moreover, it had a molecular weight of approximately 7 kD and was non...
Females of other hymenopterous species exploit the secretions of sting-associated glands as sex pheromones, whereas a variety of nonhymenopterous species have adapted components in diverse defensive secretions to function as sex pheromones. The alarm pheromones of many arthropods are also used as ...