Nutritional composition and phytochemical screening in different parts of Hibiscus syriacus L.

Abstract

As the national flower of Korea, the Hibiscus syriacus L. (Rose of Sharon) is symbolic in its abundance and is a prominent feature of Korean culture. H. syriacus has played an important role in Korea, not only as an ornamental plant but also as an essential ingredient in folk remedies through its various parts. This study aimed to characterize the nutritional and biochemical composition of each plant unit of H. syriacus “Wonhwa.” The units are namely: the petals, leaves, roots, and sprouts from its seeds. According to the results each unit produced, the sprouts had the highest content of amino acids and fatty acids which adhere to the requirements of nutritionally excellent food ingredients. The petals produced high quantities of glucose, sucrose, and fumaric acid, with the highest antioxidant activity among the four units. The main bioactive compounds detected in H. syriacus extracts in the four units were o‐coumaric acid, p‐coumaric acid, schaftoside, isoschaftoside, apigenin‐6‐C‐glucoside‐7‐o‐glucoside, and kaempferol‐3‐O‐galactoside‐7‐O‐rhamnoside. Overall, the highest number of bioactive compounds, 2 phenolic acids and 22 flavonoids, were identified in the petals. These results suggest the possibility of excellent pharmacological activity in the petals.

A Holistic In Silico and In Vivo Approach to Exploring the Antidiabetic, Antioxidant, and Hepatoprotective Properties of Rose of Sharon

“…Recent studies have identified organic acids (citric acid, fumaric acid, maleic acid), fatty acids (palmitic acid, oleic acid, linoleic acid, etc.) and various phenolic compounds from Hibiscus syriacus L., such as saponarin, coumaric acid, catechin, naringenin, kaempferol, quercetin, myricetin-galactoside, luteolin, and apigenin and its derivatives [ 14 , 37 ]. These components may work together or individually to stimulate insulin release, potentially helping to restore pancreatic β-cells or inhibiting the intestinal absorption of glucose [ 38 ].…”

“…Its anti-inflammatory activity, ability to lower cholesterol effects/serum cholesterol levels, ability to prevent heart attacks, role as a mild laxative, ability to address urinary tract problems, cleansing and detoxification of skin and vascular health, and antifungal agent effects have also been reported [13]. The results from the Park et al [14] study strongly suggest the possibility of excellent pharmacological activity and nutritional advantages not only in the petals but also in every part of the H. syriacus plant. Although it has many uses, most of the biological functions of H. syriacus L. are not clearly clarified.…”

Red and blue light-specific metabolic changes in soybean seedlings

“…The samples were derivatized before GC-MS analysis. Derivatization and GC-MS processes were performed using previously published methods, with modifications (Gu et al, 2017;Park et al, 2022). Five milligrams of freeze-dried samples were mixed with 200 mL of 20,000 ppm methyl hydroxyl chloride amine in pyridine solution and treated with sonication for 10 min.…”