Browsing by Author "Merinaswari Konjengbam"

Now showing 1 - 3 of 3

Corrigendum to “Screening of elite germplasms for industrially valuable medicinal crop Stevia rebaudiana for stevioside and rebaudioside A production: An HPTLC-linked chemotaxonomic assessment” (South African Journal of Botany (2022) 150 (1159–1167), (S0254629922004823), (10.1016/j.sajb.2022.09.004))
(Elsevier B.V., 2023) Shah Nawaz; Prabhjot Kaur; Merinaswari Konjengbam; Vijay Kumar; R.C. Gupta; Padmanabh Dwivedi; Babita Patni; Babita Pandey; Abhijit Dey; Devendra Kumar Pandey
The authors regret that the incorrect Fig. 3 was published in the original article. The correct Fig. 3 is provided herein and this will not affect the results and conclusion of the manuscript. The authors would like to apologise for any inconvenience caused. © 2023 South African Association of Botanists
RETRACTED ARTICLE: A response surface-based approach to optimize elicitation conditions in Stevia rebaudiana (Bertoni) Bertoni shoot cultures for the enhancement of steviol glycosides(Plant Cell Tissue and Organ Culture, (2023), 155, 6, (1-11))
(Springer Science and Business Media B.V., 2023) Shah Nawaz; Prabhjot Kaur; Merinaswari Konjengbam; Vijay Kumar; Romaan Nazir; Padmanabh Dwivedi; Tuyelee Das; Abhijit Dey; Devendra Kumar Pandey
The Editor-in-Chief has retracted this article because of signifcant concerns regarding two fgures presented in this work, which question the integrity of the data. After publication, a number of overlaps were detected within Figure 1 of this article, and some of the images in this fgure appear to have been cropped to give the appearance of being diferent samples. Specifcally:• samples 2, 6, and 9 appear to be identical• samples 3, 7, and 10 appear to be identical• samples 5 and 8 appear to be identical Also, in Figure 6, lines 17–20 seem identical to lines 9–12.The Editor-in-Chief therefore no longer has confdence in the integrity of the data in this article.All authors agree with this retraction. © 2023 Springer Nature B.V.
Screening of elite germplasms for industrially valuable medicinal crop Stevia rebaudiana for stevioside and rebaudioside A production: An HPTLC-linked chemotaxonomic assessment
(Elsevier B.V., 2022) Shah Nawaz; Prabhjot Kaur; Merinaswari Konjengbam; Vijay Kumar; R.C. Gupta; Padmanabh Dwivedi; Babita Patni; Babita Pandey; Abhijit Dey; Devendra Kumar Pandey
Stevia rebaudiana Bertoni (Asteraceae) is a South American perennial herb native to the Paraguay region. It is high-value commercial crop in the food industry because of an array of bioactive diterpenoid glycosides, the most important of which are the steviol glycosides, stevioside (Stev) and rebaudioside A (Reb A). Standardized extract from Stevia leaves, which is high in steviol glycosides, can be used as a high-potency sweetener. The current study proposes a high-performance thin layer chromatography (HPTLC) approach for estimating stevioside and rebaudioside that is rapid, verified, and repeatable. A collection of 32 chemotypes of Stevia rebaudiana were collected from 32 districts across nine Indian states. Stevioside and rebaudioside A content ranged between 1.43 - 5.88 % and 0.77 - 1.95 % respectively across 32 chemotypes of S. rebaudiana. Among all the studied samples, SrP1 chemotype was found to possess the highest quantity of stevioside (5.88 %) and rebaudioside A (1.95 %), followed by SrH11 (5.28 % Stev; 1.89 % Reb A) chemotypes obtained from Jalandhar, Punjab and Palampur, Himachal Pradesh respectively. Chemotype SrWb32 (1.43 % Stev; 0.77 % Reb A) collected from Bardhaman, West Bengal exhibited least amount of stevioside and rebaudioside A. The current fast, reproducible, and validated HPTLC method presents an efficacious toolkit to explore the quantitative variation in the stevioside and rebaudioside A contents in natural S. rebaudiana chemotypes. This methodology may be employed to screen high stevioside and rebaudioside A yielding elite genotypes for future propagation as well as commercialization of these highly potent sweeteners to deal with the ever-expanding demand for alternative yet natural sweeteners in food industries. © 2022 SAAB