Oct. 22-25, 2012

Zhenjiang, China

Study of Effect of Various Processing Procedures on Some Honey Characteristics

1- Researcher of Agriculture and Natural Resources Research center, Isfahan Province

2- Scientific member of Agriculture and Natural Resources Research center, Isfahan Province

3- Member of Scientific Board Animal Science Research Institute, Karaj-Iran

Raw or untreated honey, in addition to carbohydrates, organic acids, minerals, pigments, wax and pollen grain, contains active enzymes, and volatile chemical substances which are either changed or denaturized by heat and processing. The aim of this research was to determine the effect of heating and treating in the two normal (55c) and vacuum (40c) conditions on honey and probability of modifications occurring in its qualities.

In this study, following collecting honey samples from various parts of the country, destructive effect of heat in two normal and under vacuum conditions was investigated. Following to processing, such parameters as glucose, fructose, HMF and proline contents of raw and processed honey were measured and compared.

In this research project, in addition to the normally assessed parameters, the proline level, a free amino acid constituting 50 to 85 present of the total honey amino acids was measured as well. Proline concentration was assessed employing spectrophotometer at 510nm. Data were analyzed using SPSS software. Results of this study revealed that samples processed at a 55c temperature suffered decreased proline and free acids and that, this difference compared with raw honey and heating in vacuum at 40c was quite significant. The glucose, fructose and PH levels showed no significant variations. The level of hydroxyl methyl furfural in the honeys processed of 55c was higher than in honey samples processed at either 40c at vacuum conditions and that of two raw honey however, this difference was not significant.

References

1. ^{^} Diese E-Mail-Adresse ist vor Spambots geschützt! Zur Anzeige muss JavaScript eingeschaltet sein! (apitherapy.blogspot.com)