Insights & Discussion
Citrus limon extracts could be a promising antioxidant source for the prevention and/or treatment of oxidative stress-related diseases.
Extracts from Citrus limon exhibit powerful antioxidant properties, expressed by its capacity to scavenge DPPH radicals and to reduce power, and the extracts reduce H2O2-induced DNA via its antioxidant activities. These antioxidant activities and inhibitory effects of the extracts on DNA and cell damage may further prove that Citrus limon is useful as a medicinal plant for cancer chemoprevention.
The results obtained show that Citrus limon extracts contain high enough levels of phenolic and flavonoid compounds. This is correlated with a remarkable antioxidant activity towards the reduction of iron, and a relatively high power against scavenging free radicals.
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Pumpkin seeds are recognised for their medicinal, nutritional, and cosmetic benefits, including anti-diabetic, heart disease prevention, anti-cancer, and antioxidant qualities.
2024 The Natural Products Journal Pumpkin Seeds (Cucurbita spp.) as a Nutraceutical Used In Various Lifestyle Disorders Wal A, Singh MR, Gupta A, Rathore S, Rout RR, Wal P
Review Article Anti-Parasite Anticancer Antioxidant
The review article undertakes a comprehensive exploration of the nutraceutical importance of pumpkin seeds. The methodology includes an examination of the various known substances in the seeds, such as phytoestrogens, unsaturated fatty acids, and vitamin E. The study then delves into the different benefits and therapeutic uses of these components stretching from medicinal to nutritional to cosmetic applications.
The results of this research are diverse and impressive, with implications for several major health sectors. Their potential anti-diabetic and hypoglycemic properties could suggest a significant role in the management and prevention of diabetes. Meanwhile, the seeds' potential in cardiovascular disease prevention could help to address one of the most pressing global health issues. Moreover, potential anti-cancer properties imply that these seeds could even have a part to play in cancer prevention. The review also described potential additional qualities, such as antidepressant, anti-helminthic (parasite-removing), and antioxidant effects.
Chrysanthemum extract can be utilised as a natural ingredient to lessen post-meal cholesterol levels and enhance antioxidant status, after eating a high-fat meal.
2023 Molecules Analysis of Chemical Constituents of Chrysanthemum morifolium Extract and Its Effect on Postprandial Lipid Metabolism in Healthy Adults Chen L, Sun J, Pan Z, Lu Y, Wang Z, Yang L, et al.
Clinical Study Antioxidant Cholesterol Chrysanthemum
The researchers analyzed the composition of two types of Imperial Chrysanthemum (IC) extracts, specifically IC-P and IC-E, using an Ultra High-Performance Liquid Chromatography-Mass Spectrometry (UHPLC-MS) method. Next, they assessed these extracts' in vitro antioxidant activities using three different radical scavenging assays: 1,1-diphenyl-2-picrylhydraxyl (DPPH), 2,2-azino-bis-3-ethylbenzothiazoline-6-sulfonic acid (ABTS) and Hydroxyl Radical(HR). A group of 37 adults followed a randomized program and were divided into two: one consuming a high-fat (HF) meal alone and the other having the same meal but supplemented with IC extract. Blood samples from participants were taken at a fasting state and several more times up to 8 hours after the meal.
The study found 12 compounds, including amino acids, flavonoids, and carboxylic acids, making up over 1% of the IC extracts. Compared to IC-E, IC-P exhibited significantly higher flavonoid content and strong free radical scavenging activity. Chrysanthemum consumption showed significant differences in post-meal glucose levels, triglycerides, total antioxidant capacity (T-AOC), and malondialdehyde (MDA) levels, with the IC-P supplement group showing lower postprandial glucose and improved serum antioxidant status.
Gold kiwifruit extracts contained different bioactive materials which showed selective cytotoxic activity against human oral tumor cells and displayed anti-HIV, antioxidant, and antibacterial activities.
2023 Journal of Ethnopharmacology Cancer prevention and therapy with kiwifruit in Chinese folklore medicine: a study of kiwifruit extracts Motohashi N, Shirataki Y, Kawase M, Tani S, Sakagami H, Satoh K, et al.
Network Pharmacology Antibacterial Antioxidant Kiwifruit
The methodology involved stepwise extraction of gold kiwifruit with hexane, acetone, methanol, and 70% methanol; the extracts were then fractionated using silica gel and ODS column chromatographies to examine their biological activities. Different fractions like H1, H2 (from the hexane extract), A1, A2 (from the acetone extract), and M2 (from the methanol extract) were tested, as well as more hydrophilic fractions from the 70% methanol extract.
In the discussion of the results, fractions H1, H2, A1, A2 and M2 displayed notable cytotoxic activity against human oral tumor cell lines, with these showing more sensitivity compared to human gingival fibroblasts. The hydrophilic fractions from the 70% methanol extract demonstrated higher anti-HIV activity, radical generation, and oxygen scavenging activity. However, the antibacterial activity of these fractions was generally lower than that of the more lipophilic (hexane, acetone, methanol) extracts, indicating no distinct antimicrobial action. Interestingly, all fractions were inactive against Helicobacter pylori.
The compound (Z)-5’-Hydroxyjasmone 5’-O-β-D-Glucopyranoside from chrysanthemum flowers demonstrated superior antioxidant and anti-osteoporosis effects.
2023 Journal of Science and Technology - HaUI Investigate the antioxidant and anti-osteoporosis activities of compounds isolated from chrysanthemum indicum flowers Le The Hoai, Nguyen Thi Huong, Bui Thi Thu Trang
Experimental Study Antioxidant Chrysanthemum Osteoporosis
The research involved isolating five compounds from Chrysanthemum indicum L flowers: Syringin, Dihydrosyringin, Benzyl-O-β-D- glucopyranoside, -Phenylethoxy-O--D-glucopyranoside, and (Z)-5’-Hydroxyjasmone 5’-O-β-D-Glucopyranoside. The identification and structure determination of these compounds were performed via the interpretation of their 1D - NMR spectra and comparison to established literature. The collected compounds were then assessed for their antioxidative and anti-osteoporosis activities.
During the analysis of results, it was observed that the compound (Z)-5’-Hydroxyjasmone 5’-O-β-D-Glucopyranoside exhibited significantly higher antioxidant activity and anti-osteoporosis effects compared to the others. It showed a strong capacity for peroxyl radical scavenging, surpassing the protection offered by the standard Trolox. Dihydrosyringin also demonstrated a good reducing capacity, as indicated by its CUPRAC values. Furthermore, (Z)-5’-Hydroxyjasmone 5’-O-β-D-Glucopyranoside displayed strong inhibitory effects on osteoclast differentiation, indicating its potential as an anti-osteoporosis agent.
Chrysanthemum morifolium contains natural bioactive compounds, including 29 types of phenolics, which display significant antioxidant activity.
2023 Egyptian Journal of Chemistry Chemical Investigation of Phenolic Profiles and Antioxidant Activity of Chrysanthemum morifolium Youssef H, Ali S, Sanad M, Dawood D
Experimental Study Antioxidant Chrysanthemum
The study determined the antioxidant properties of Chrysanthemum morifolium by using methanol and ethyl acetate as solvents to extract and then analyse the plant's phenolic profile. The antioxidant activity was assessed with three separate in vitro tests: a reducing power assay, a Phosphomolybdenum antioxidative power assay, and the testing of inhibition of free radical 1,1-di phenyl-2-picryl hydrazyl. The content of total phenolics and total flavonoids was measured using the Folin Ciocalteu reagent, yielding a range of values.
In relation to the results, it was established that the examined plant was a significant source of bioactive compounds with notable antioxidant properties. A total of 29 phenolics, divided into 15 phenolic acids and 14 flavonoids were identified and quantified using high-performance liquid chromatography. Ellagic acid was the most present phenolic in the methanol extract and ethyl acetate fraction of green aerial parts. Meanwhile, Hesperidin was the most common flavonoid in the flower methanol extract. The ethyl acetate fraction from the flowers showed the highest efficiency in all tested antioxidant methods, indicating that different parts of the plant can vary in their antioxidant potential.
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