Open Access Pub publishes peer-reviewed, free-to-read open-access articles. Showing
articles matching sucrose — open any to read the full text,
or download the PDF or XML.
Dec 2018 DOI 10.14302/issn.2576-6694.jbbs-18-2475
Kumar Srivastava RajeshCorresponding author
Department of Biotechnology, GITAM Institute of Technology, Gandhi Institute of Technology and Management, (GITAM) (Deemed to be University), Rushikonda, Visakhapatnam (A.P.), India.
Callus and biomass culture of Catharanthus roseus L. were established to check for the presence of total alkaloid and its subsequent yield. Various treatments like strength of nutrient salts, sucrose concentrations and combinations of plant growth regulators (PGR’s) were applied to both MS and B5 in agar as well as suspension medium to test their effects on enhanced alkaloid content and its yield. There was no significant difference in any of the observable parameters of fresh wt, dry wt, alkaloid content, production, productivity and yield if the culture were treated similarly in both types of media formulations (MS or B5 salts). Physical state (agar solidified or the liquid suspension) of the medium had significant effect on all the parameters particular on fresh wt, alkaloid content and yields. Although, the fresh wt. and dry wt. of biomass in suspension culture was 2-3 times less than that of callus obtained from agar medium. However, the alkaloid content and yield was 2-3 times higher in suspension culture compared to agar medium in similar treatments. The highest alkaloid content observed was 5.67mg/g dwt in B5 suspension medium containing 3% sucrose and modified with 0.5mg/l 2,4-Dichlorophenoxy acetic acid (2,4-D) + 1 mg/l Kinetin (KIN) + 2mg/l α- naphthalene acetic acid (NAA). The combined effects of these factors on the enhanced production of total alkaloids were expected to contain higher yield of anticancer vinblastine and vincristine in the cell suspension culture system.
Aug 2023 DOI 10.14302/issn.2379-7835.ijn-23-4688
Fernando Javier Lavalle-GonzalezCorresponding author
Non-nutritive sweeteners are used as adjuncts in treating patients with diabetes to reduce carbohydrate intake. Monk fruit is an FDA-approved1 natural NNS2-. There is no information regarding the use of monk fruit in individuals with T2DM3. The primary objective was to compare the glycemic response to sucrose and monk fruit in individuals with and without T2DM. Twenty-six individuals with T2DM and 29 without DM4 underwent two oral glucose tolerance tests5 after a 250-ml sucrose- or monk fruit-sweetened beverage. Glucose levels were measured at 0, 30, 60, 90, and 120 minutes. An appetite scale was used before and after the procedure. Insulin levels were measured in ten randomly selected individuals from the control group. The glucose levels at 30 and 120 min were significantly lower in both groups in the monk fruit-OGTT. There was a peak response in the T2DM group at 90 min (median, IQR, 247 mg/dL, 203-293) with the sucrose OGTT, while no peak response was seen in the monk fruit OGTT. There were no differences between sweeteners in terms of appetite evaluation. The postprandial effect on insulin levels was flat with the monk fruit-sweetened beverage. In contrast, there was a significantly higher spike with the sucrose-sweetened beverage. In conclusion, monk fruit does not increase glucose levels in individuals with T2DM; thus, it could be a safe alternative as a substitute food sweetener.
Mar 2020 DOI 10.14302/issn.2766-869X.jfd-20-3193
Patel PritteshCorresponding author
C. G. Bhakta Institute of Biotechnology, Uka Tarsadia University, Bardoli, Gujarat, India
Fusarium solani NVS671 identified from infected sugarcane stem of Co 671 as a new pathogen was subjected to various cultural conditions to understand its physiological profile. In continuation with our previous work, cultural analysis was carried out under in vitro condition by supplementing various carbon and nitrogen sources in Czapek-Dox agar (CDA). Under different hydrogen ion concentrations, it was found that the growth of Fusarium solaniNVS671 was less at pH 4 and pH 10 and could reach up to 5 cm after 7 days of incubation on Potato Dextrose Agar (PDA). It is observed that the pH around 7 to 8 was optimum for the growth of F. solani. Ten different nitrogenous (N) sources and nine different carbon sources were tested on CDA medium to know their effect on the mycelial growth rate and characteristics of the fungus. Among the N sources evaluated, ammonium chloride (7.96±0.11 cm) was found to be most efficient for mycelial growth promotion followed by ammonium nitrate (7.7±0.1 cm) and ammonium sulphate (7.3±0.1 cm). The most preferred carbon source recorded to promote best radial mycelial growth was starch (7.96±0.05 cm) and sucrose (7.93±0.05 cm). Capabilities of using different carbon and nitrogen sources and ability to grow at different pH levels may allow species to adapt to specific soil conditions.This study is important to understand the physiology and metabolite preference of F. solani.