Chemical and Organoleptic Characterization of Vernonia Honey

International Journal of Research and Scientific Innovation (IJRSI) | Volume VI, Issue X, October 2019 | ISSN 2321–2705

Chemical and Organoleptic Characterization of Vernonia Honey

Gemechis Legesse Yadeta

 Oromia Agricultural Research Institute, Holeta Bee Research Center, Holeta P.O. Box 22, Ethiopia

Abstract–Vernonia amygdalina honey is one of the important mono-floral honey in Ethiopia where the plant grows widely. In this study Vernonia honey samples were collected from potential honey producing districts of West Wollega, Jimma and Ilu Abba Bora zones of Oromia regional state. Melissopalynological analysis was conducted for the samples to confirm their botanical origin. Aroma and taste were evaluated using blindfold assessment of experienced tasters. Colour was graded using p-fund color grader. Granulation starting time was recorded by inspecting the samples every two days visually and granulation pattern was also judged by close observation of the crystallizing samples. Chemical characterization was conducted following the Codex Alimentarius (2001) protocol. The results indicated that V.amygdalina honey is a moo-floral honey with high pollen frequency (mean 84.45%), its peculiar color, aroma, taste and uniform and fine crystallization pattern. The chemical profile generally showed that the honey meets national and international standards: the mean moisture content (18.87%), mean mineral content (0.28%), mean total reducing sugars (70.4%), mean sucrose level (2.03%), mean value of 24.75meq/kg free acidity and mean HMF value of 15.52mg/kg. Therefore, this honey needs due attention so that the beekeepers harvest it and process separately and maintain its natural characteristics to be promoted for improved production and better marketing.

Key words– characterization, chemical, honey, organoleptic, Vernonia amygdalina

I. INTRODUCTION

Availability and abundance of bee floral plants are important factors for the success of beekeeping [1]. In this regard, Ethiopia has enormous potential as it is endowed with thousands of species of honeybee flora [2]. These plants include trees in forests, bushes, grasses and numerous cultivated crops that can support large number of honeybee populations. Most of these plants supply nectar or pollen or both [3]. Some of the honeybee plants are major ones and are dominantly used by the bees for brood rearing and honey production, while the rest are minor ones.

Read More