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Honey physical property

Viscosity is one of the physical properties of honey that depends on its water content (Olaitan et ah, 2007). Moreover, the content of insoluble matter in water present in the honey is an important method for detecting impurities. The impurities content must not exceed the maximum allow limit of 0.1 g/100 g. [Pg.105]

Via a plant hopper and honeybees, partly metabolized picrotoxanes from Coriaria spp. growing in New Zealand are found in toxic honey. The rather difficult isolation of picrotoxanes from honey has been described several times 2,3,10,99,100) and even now the procedure seems not entirely satisfactory (700). Originally, the isolation of picrotoxanes was achieved by extraction of honey with acetone. Later, ethyl acetate was the preferred solvent. In the late 1960s, the two main picrotoxanes were identified as tutin (11) and hyenanchin (15). Originally, the detection was governed by the physical properties of crystals obtained, color reactions, and bromoether formation. Palmer—Jones then developed a method... [Pg.113]

Physical properties of foods—Foods that stick to tooth surfaces and that are slowly soluble promote caries. Eiquid foods, in comparison to sticky or retentive foods, tend to have lower cariogenicity. Therefore, honey and the sugars of dried fruits can contribute to dental caries as well as refined sugar and the products made from it. Sometimes, raw fibrous foods are recommended for between meal snacks. These foods generally require more chewing and stimulate saliva flow, but they do not clean the teeth. Increased saliva flow is beneficial. Also, fats, which produce a protective oily film on the surface of the teeth serve as a barrier of acid penetration to the enamel. [Pg.264]

Honey 20 8 Satisfactory this chemical is only absorbed to a low level and thus has little or no measurable effect on physical properties ... [Pg.525]

The amount of organic acids in honey is less than 0.5%. Organic acids can be used as an important indicator of organoleptic properties like color and flavor and physical and chemical properties such as pH, acidity, and electrical conductivity (Crane, 1990). The organic acids in honey also have antibacterial and antioxidant activities (Gheldof et ah, 2002 Weston et ah, 1998). Organic acids in honey can be used as fermentation indicators, or for the treatment of Varroa mite infestation (Calderone, 2000 Mutinelli et ah, 1997) and discriminating between honeys based on their... [Pg.113]

The quality of honey (nectar and honeydew) is determined by its sensorial, physical, and chemical properties. The last two are evaluated using standard parameters established by the Codex Alimentarius (2001) and... [Pg.107]

Fiber formation is not a special property of macromolecular substances fibers can be drawn not only from melts and concentrated solutions of polymers but also from honey or soap solutions. In all these procedures, molecules more or less extended along their lengths in the draw direction form lateral physical bonds. The number of such bonds per molecule is only small in the case of low-molar-mass molecules the mechanical strengths are low. The number of contact points formed per molecule increases with its degree of... [Pg.749]


See other pages where Honey physical property is mentioned: [Pg.266]    [Pg.1563]    [Pg.531]    [Pg.83]    [Pg.79]    [Pg.669]    [Pg.719]    [Pg.535]    [Pg.233]    [Pg.234]    [Pg.103]    [Pg.3]    [Pg.233]    [Pg.234]    [Pg.21]    [Pg.270]   
See also in sourсe #XX -- [ Pg.885 ]




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