The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 05, 2019
Filed:
Dec. 01, 2016
Council of Scientific and Industrial Research, New Delhi, IN;
Adari Bhaskar Rao, Telangana, IN;
Meshram Harshdas Mitaram, Telangana, IN;
George Sara Anisa, Telangana, IN;
Alavala Sateesh, Telangana, IN;
YVL Ravi Kumar, Telangana, IN;
Madupathi Madhumala, Telangana, IN;
Nandala Shiva Prasad, Telangana, IN;
COUNCIL OF SCIENTIFIC AND INDUSTRIAL RESEARCH, New Delhi, IN;
Abstract
The invention relates to the development of a simple and eco-friendly process of extraction of sweet glycosides: steviosides from the leaves of. In particular, certain embodiments provide enhanced isolation of steviosides by enzyme assisted extraction, in combination with metal salts, followed by pressurized aqueous extraction. Thus obtainedextract was further processed for clarification and purification using multi-stage membrane filters (micro-filtration, ultra-filtration and nano membrane filtration) to obtain high purity steviosides from theleaves. This improved process confirms the isolation of high purity steviol glycosides i.e., Stevioside and Rebaudioside-A as the final products, with improved organoleptic properties. Thus, this superior process helps in obtaining pure steviosides from theleaf extract, without impurities and obnoxious residues, using easy operational technology without any damage to the environment.