@article {1877, title = {Phytochemical and Biological Studies of Helichrysum acutatum DC}, journal = {Pharmacognosy Journal}, volume = {14}, year = {2022}, month = {October 2022}, pages = {603-609}, type = {Research Article}, chapter = {603}, abstract = {

Helichrysum acutatum from the Asteraceae family is a shrub indigenous to Southern Africa. The plant is used in traditional medicine as an enema for newborn babies. This study aimed to isolate and identify the bioactive constituents from H. acutatum. In addition, the crude extracts and isolated compounds were tested for their antioxidant, antibacterial and cytotoxic activities. The phytochemical investigation afforded the known compounds stigmasterol, stigmasterol glucoside, and caffeic acid. The antioxidant activity of the ethyl acetate extract showed higher activity compared to other extracts, ascorbic acid and butylated hydroxytoluene. Antibacterial profiling of all the extracts showed no activity against Gram-negative and Gram-positive bacterial strains. The cytotoxic activity of the crude extracts was assayed in vitro against two human cancer cell lines, liver hepatoblastoma (HepG2) and colorectal adenocarcinoma (Caco-2). The human embryonic kidney cell line (Hek-293) was used as the non-transformed control. The plant extracts showed insufficient antiproliferative or cytotoxic activity to the tumour and regular cell lines tested, which signifies suitable for human consumption. Overall, this plant has better antioxidant activity than other plants in the genus, which needs further exploration.

}, keywords = {Antioxidant, Caffeic acid, Cytotoxicity, Magnetic resonance}, doi = {10.5530/pj.2022.14.142}, author = {Funsho Oyetunde-Joshua and Roshila Moodley and Hafizah Cheniah and Rene Khan} } @article {623, title = {High Performance Thin Layer Chromatographic Analysis for the Simultaneous Quantification of Two Polyphenolic Biomarkers in Methanolic Fraction of Bauhinia tomentosa L. Floral Buds}, journal = {Pharmacognosy Journal}, volume = {10}, year = {2018}, month = {May 2018}, pages = {773-777}, type = {Original Article}, chapter = {773}, abstract = {

Objectives: A high-performance thin layer chromatography (HPTLC) method for the simultaneous quantitative determination of caffeic acid and quercetin in methanolic fraction of Bauhinia tomentosa L. floral buds was developed for the first time. Method: For achieving good separation, a mobile phase of toluene: ethyl acetate: formic acid (7:3:0.5, v/v/v) was used. The densitometric determination was carried out at 366 nm in reflection/absorption mode. The calibration curves were linear in the range of 100-600 ng per spot for caffeic acid and quercetin. Results: During the analysis methanolic fraction of Bauhinia tomentosa L. floral buds showed the pres\¬ence of caffeic acid (0.02\%) and quercetin (0.018\%). Conclusion: The proposed method is simple, precise, specific, accurate, less time consuming and cost effective. The statistical analysis of data obtained proves that the method is reproducible and selective and can be used for routine analysis of reported phenolic compounds in crude drug and extracts. The simultaneous quan\¬tification of these compounds has not yet been reported in floral buds of Bauhinia tomentosa which may be utilized for the proper standardization of the plant.

}, keywords = {Bauhinia tomentosa, Caffeic acid, HPTLC, Quercetin, Validation}, doi = {10.5530/pj.2018.4.130}, url = {http://fulltxt.org/article/668}, author = {Abhishek Gupta and Harinath Dwivedi and AKS Rawat} } @article {693, title = {Quantitative and Optimization of Phenolic Acid Extracted from Pomegranate by High Performance Liquid Chromatography (HPLC)}, journal = {Pharmacognosy Journal}, volume = {10}, year = {2018}, month = {August 2018}, pages = {969-972}, type = {Original Article}, chapter = {969}, abstract = {

Objective: Pomegranate is scientifically known as Punica granatum L. which is a nutrient dense fruit rich in phytochemical compounds. Phenolic content is the main compound attribute for the most of the functional properties in pomegranate. The aim of this study is to quantify and optimize the composition of phenolic acids extracted from pomegranate extract by using High-performance Liquid Chromatography (HPLC). Method: The pomegranate extracted with three different methods by using two different solvents which is 50\% ethanol and water. The methods were blended (aril+ seed), Soaking (aril+ seed) and soaking + squeezed manually. HPLC-PDA was used as equipment to quantify and optimize the phenolic acids extracted from pomegranate. Result: Validation method of HPLC was analysed according to the percentage of recovery, LOD, LOQ and coefficient correlation. Result showed that GA was detected in all sample from different method of extraction applied while CA compound not detected in any of extraction method applied. FA compound was only detected in blended method by 50\% ethanol and water as solvent while EA compound was detected only in water extraction of all three methods applied. Conclusion: As a conclusion, according to the standard calibration data curve showed that this method proved to detect and quantify the targeted compounds. By comparing the data obtained from this study, it showed that water blended extract method is significantly higher content of targeted compound except for the CA compound. To the best of our knowledge, this sample can be a valuable source of antioxidant for better used in health benefits.

}, keywords = {Caffeic acid, Ellagic acid, Ferulic acid, Gallic acid, HPLC, Pomegranate extract}, doi = {10.5530/pj.2018.5.164}, author = {Jumli Mimie Noratiqah and Ridzwan Norhaslinda and Baig Atif Amin and Rohin Mohd Adzim Khalili} }