Protection of Vine from Winter Stress with the Use of Silicate
Svetlana Lepeshkina,
Uri Yakuba
Issue:
Volume 9, Issue 3, May 2023
Pages:
28-31
Received:
10 May 2023
Accepted:
12 June 2023
Published:
13 July 2023
Abstract: The basic limiting factor of cultivation of grapes in the south of Russia it is low temperatures of the winter season that demands covering. The search for effective ways to protect grapes and fruit crops from winter stress is relevant for world science and production. The increasing of marginal winter temperature for vine which is bound by that on a grape vine the microporous film protecting from sharp temperature drops was formed is received. Capillary electrophoresis was used for determination of mobile forms ions and carbonhydrates in the vine of Chardonay and Moldova to establish the influence of the applied protection on these indicators. Visual studies carried out microscopy allowed us to establish the formation of a porous microfilm on the surface of the vine. In experiments a grape vine treated an aqueous emulsion of the silicate-carbonate preparation consisting of two components – liquid and a powder. The characteristic of a protective structure: is nontoxic, is non-combustible, inodorous. Testing of a physiological state of a grape vine has shown the following: the total concentration of carbohydrates in intercellular sap reached 20-70 g/kg of a grape vine, without treatment – 17-44 g/kg. The porous film in field conditions of a vineyard conserved mechanical stability about 3 months. The protecting film was destroyed in the spring, a natural path at the beginning sap flow in the plants.
Abstract: The basic limiting factor of cultivation of grapes in the south of Russia it is low temperatures of the winter season that demands covering. The search for effective ways to protect grapes and fruit crops from winter stress is relevant for world science and production. The increasing of marginal winter temperature for vine which is bound by that on...
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Hurdle Technology – Approaches to Improve Cosmetic Preservation
Saima Athar,
Anjali Gholap,
Rachna Rastogi
Issue:
Volume 9, Issue 3, May 2023
Pages:
32-37
Received:
25 June 2023
Accepted:
13 July 2023
Published:
27 July 2023
Abstract: Increasing toxicity reports and new regulations for existing preservatives has driven a need for cosmetic formulations that are self-preserved. Use of preservatives is important to ascertain shelf life stability and minimize contamination after opening. While new classes of materials are being researched, their efficacy has been found to be substantially lower than their predecessors. Due to the variety of formulation types, it is exceedingly challenging to preserve different product formats using a handful of preservatives. Hurdle technology is being adapted by cosmetic scientists for designing formulations by modifying physico-chemical properties and use of multi-functional ingredients with antimicrobial properties to improve shelf life and minimize in-use contamination of products. This technology will also assist formulation scientists to make “preservative-free” claims for products while consumers get the advantage of using “clean cosmetics”. Further, multifunctional materials help in reducing the formulation cost while enhancing product stability due to lesser number of ingredients. In this focussed review, we describe various techniques for improving preservation with their strengths and weaknesses to assist formulation scientists in making informed choices. Implementation of these methods with new preservatives will provide solutions to scientists to manage the diverse range of formulations for various benefits.
Abstract: Increasing toxicity reports and new regulations for existing preservatives has driven a need for cosmetic formulations that are self-preserved. Use of preservatives is important to ascertain shelf life stability and minimize contamination after opening. While new classes of materials are being researched, their efficacy has been found to be substan...
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