Stevia Rebaudiana Bertoni Leaf Case Study

Great Essays
Gasmalla et al
Trop J Pharm Res, January 2014;13 (1): 61
Tropical Journal of Pharmaceutical Research January 2014; 13 (1): 61-65
ISSN: 1596-5996 (print); 1596-9827 (electronic)
© Pharmacotherapy Group, Faculty of Pharmacy, University of Benin, Benin City, 300001 Nigeria.
All rights reserved.
Available online at http://www.tjpr.org http://dx.doi.org/10.4314/tjpr.v13i1.9 Original Research Article
Nutritional Composition of Stevia rebaudiana Bertoni Leaf:
Effect of Drying Method
Mohammed Abdalbasit A Gasmalla1,2, Ruijin Yang1
*, Issoufou Amadou1 and
Xiao Hua1
1
State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi
214122, PR China, 2Department of Nutrition & Food Technology, Faculty
…show more content…
The changing in total energy refers to the fact that biochemical and physiological changes occurred during the time of different drying methods. The total energy of microwave drying was significantly higher than its counterpart sun and oven drying. It was also found that microwave drying resulted in higher amount of tannins than the sun drying whereas, oven drying exhibited the lowest value. There is no significant difference between the three drying methods for tannins contents. Our value is lower than that of
Rai [2] who found 7.8 %. Tannins possessing useful properties such as antioxidant, antiapoptosis, anti-aging, anti carcinogenic, antiinflammatory, as well as anti atherosclerosis and cardiovascular protection [14].
The results of heavy metals in Stevia leaves grown in China fall within internationally accepted range [15] where vegetables should not exceed
6, 0.1, 1.4 and 0.5 µg/g respectively for Pb, Cd,
As and Hg. However, Kabelitz [16] reported the limits of heavy metals to be 10 (Pb), 1 (Cd), 5
(As) and 0.1 (Hg) µg/g.
CONCLUSION
Drying method can affect the

Related Documents

  • Decent Essays

    Trimyristin Lab Report

    • 227 Words
    • 1 Pages

    In the first part of this experiment a pure compound named, “trimyristin” was extracted from its natural source nutmeg creating a natural product. Natural products are defined as organic compounds that derive from vital organisms such as plants like nutmeg [1]. Isolating organic compounds from vital organisms are typically difficult to accomplish, however in this experiment trimyristin comes in large quantities especially in nutmeg. Approximately 25-40% can be extracted from the nutmeg [1]. Trimyristin is a triglyceride which is an ester attained from the lipid, glycerol, with three hydroxyl groups attached that contains fatty acid groups that are from myristic acid [2].…

    • 227 Words
    • 1 Pages
    Decent Essays
  • Improved Essays

    Two temperatures of turnip extract were tested: 0°C and 100°C. Three trials were run at each temperature to obtain an average and lessen the effect of error in individual trials. For the 0°C trials, turnip extract with an unknown concentration of turnip peroxidase was obtained and kept on ice for the duration. A control mixture was prepared in a test tube which contained 1.0 mL turnip extract, 8.9 mL buffer pH 6.8, and 0.1 mL guaiacol .…

    • 206 Words
    • 1 Pages
    Improved Essays
  • Superior Essays

    Clostridium Botulinum Clostridium Botulinum is a single celled bacteria and has organelles, not bounded by a membrane. They are asexual and reproduce by binary fission. It belongs to Kingdom Bacteria because it has peptidoglycan in its cell wall. It is unicellular and lack nucleus. It is obligate anaerobe as well as have ability to produce by spore so it falls under Phylum Firmicutes.…

    • 1229 Words
    • 5 Pages
    Superior Essays
  • Brilliant Essays

    17. Covey S.N., Al-Kaff N.S., Langara A., Turner D.S. (1997) Nature, 385, 781-782. 18. Durrant W.E., Dong X. (2004) Annu.…

    • 490 Words
    • 2 Pages
    Brilliant Essays
  • Improved Essays

    Food Test 1a

    • 422 Words
    • 2 Pages

    Before beginning any of the tests the food samples were selected and separately blended in a small blender with water. This step was necessary for the food samples to fit into test tubes. Each food sample was left in a separate beaker to await the experiments. The first step of test 1a was to prepare 6 test tubes.…

    • 422 Words
    • 2 Pages
    Improved Essays
  • Decent Essays

    Vocabular Coating Paper

    • 69 Words
    • 1 Pages

    Recently, studies on the use of edible coatings has been intensified. In contrary to edible film which is first molded as solid sheets, and then applied as a wrapping for food products, edible coating is a thin layer of edible material, applied in liquid form on the food product, usually by immersing the product in the solution of edible material, to form a coating on the surface of…

    • 69 Words
    • 1 Pages
    Decent Essays
  • Improved Essays

    China has a very long history, with many triumphs and achievements comes failures, the improvement of Post Classical China’s economy was an achievement. The advancements in agriculture, technology, and the increase in population, had a major impact on China's economy. China’s advancements in agriculture, technologically, and the sustainability of the population was a great factor that played a role in China’s economy. Agriculture is a main factor of improving China’s economy because it helps improve the growth of crops and the production of food to increase the population which increases the economy. Fast ripening rice was acquired in Vietnam when imposing into Southern China and Vietnam, they found a strain of fast ripening rice.…

    • 560 Words
    • 3 Pages
    Improved Essays
  • Improved Essays

    • In Food Analysis [23,24] The food matrices are divided into food of animal origin and related products, vegetables, fruits and related compounds, and other food-related matrices. HILIC is used on a large scale in the separation of different food matrices. In the recent years the use of HILIC has grown and the following figure relates to the same. Fig.…

    • 818 Words
    • 4 Pages
    Improved Essays
  • Decent Essays

    Alexy Inyatkin

    • 124 Words
    • 1 Pages

    Alexey Inyatkin (MSc, BSc) is a nutrition industry professional, scientist and food business developer. He has more than 10 years of diverse, well-rounded international experience in the fields of functional foods, quality control, product formulation, physiology and genetics. He has been managing QA/QC departments, reinforcing food safety procedures of leading manufacturing companies, establishing gourmet shops, dealing with government bodies both in Canada and internationally .…

    • 124 Words
    • 1 Pages
    Decent Essays
  • Improved Essays

    Chemistry Lab

    • 559 Words
    • 3 Pages

    In order to complete this experiment, students had to provide a great amount of focus and a good understanding of the procedures, which were, along with the materials, very detailed. With this being said, because most of the materials had similar names, it was important for students to not manipulate the lab by mixing up the reagents, which would completely ruin the experiment. The important factors that influenced the success of this experiment included the following: 1) 100% transfer, 2) 100% digestion, 3) controlling the amount of bacteria and metals absorbed from the surroundings, 4) excessive boiling of the product, 5) an error with the starch indicator, and 6) 100% reaction. Students also had to understand, like with every other lab completed in this course, that the weighing process created sources of errors as well, such as: not clearing the balance before weighing the samples, not weighing the samples at a…

    • 559 Words
    • 3 Pages
    Improved Essays
  • Superior Essays

    Equal is comprised of dextrose, maltodextrin and aspartame (Kuruvilla, n.d., para. 7); it was slightly more difficult for the yeast to hydrolyze Equal than the Monk Fruit compound, implying that the bonds in the molecules from the pure monk fruit were weaker than the bonds in the maltodextrin and aspartame. The yeast in the ‘Fake’ Truvia tube produced the least amount of carbon dioxide of the five compounds. After forty minutes, only 3 millimeters of carbon dioxide had accumulated in this fermentation tube (Table 1). The ‘Fake’ Truvia compound “combines the sugar erythritol with rebiana from the stevia plant” (Kuruvilla, n.d. para. 7). The bonds between the oxygen and nitrogen atoms were too strong for the yeast to hydrolyze (Figure 1); thus, only a negligible amount of fermentation occurred in this…

    • 1366 Words
    • 6 Pages
    Superior Essays
  • Improved Essays

    Boiling Point Lab Report

    • 820 Words
    • 4 Pages

    This experiment examined the boiling process and the effect of added ingredients. Purpose of this experiment is to understand boiling process as well as the factors that affect this property. The objective of this experiment is to investigate the appearance and temperature of range of water that is lukewarm, scalding, simmering and boiling point. On top of that, we also need to determine the factors that boiling temperature of water alone and with various ingredients added.…

    • 820 Words
    • 4 Pages
    Improved Essays
  • Improved Essays

    Atsuete Beets Experiment

    • 963 Words
    • 4 Pages

    Results and Discussion A. Diffusion of selected plant pigments In conducting the diffusion of 4 different kinds of treatments (distilled water, distilled water placed in boiling bath, vegetable oil, heated vegetable oil), the researchers made use of the atsuete and sugar beets. The different kinds of treatments determined how the temperature will affect the color intensity of the atsuete and sugar beets. There were 4 test tubes used in each atsuete and sugar beets with each having a different treatment as seen in (fig 1) and (fig 2). The color intensity in each tube is divided into +,++, or +++.…

    • 963 Words
    • 4 Pages
    Improved Essays
  • Improved Essays

    Cereal Market Mix Product We want our consumers to know that Cereal is a healthy option for a snack. It is full of nutrients and made of healthy ingredients such as whole grain, flax seed and we have replaced sugar with a natural sweetener “stevia” which tastes exactly like sugar and it contain “Zero” calories. We are portraying the message that “Healthy food can taste good”. The packaging of the product comes in different look according to who we are segmenting it to.…

    • 853 Words
    • 4 Pages
    Improved Essays
  • Improved Essays

    Phytotherapy Essay

    • 868 Words
    • 4 Pages

    Apart from that, emission from factories or the residues of certain pesticides can pollute the environment and subsequently medicinal plants. Recent research has also demonstrated that herbs may absorb heavy metals during growth (2). As a result, the health and well-being of people is subjected to potential global danger. However, we can assess the quality of the medicinal plants, herbal materials, and finished herbal products to ensure that herbal medicines with harmful contaminants and residues do not reach the public. Moreover, Guidelines on good agricultural and collection practices (GACP) for medicinal plants and Quality control methods for medicinal plant materials…

    • 868 Words
    • 4 Pages
    Improved Essays

Related Topics