The Contents of Polyphenols in <i>Perilla frutescens</i> (L.) Britton var. <i>frutescens</i> (Egoma) Leaves are Determined by Vegetative Stage, Spatial Leaf Position, and Timing of Harvesting during the Day

Abstract

IntroductionPerilla frutescens L. Britton is an annual plant belonging to the mint family Lamiaceae and native to regions of the Himalayas up to eastern Asia. It is cultivated throughout China,

Biological investigations on macro-morphological characteristics, polyphenolic acids, antioxidant activity of Perilla frutescens (L) Britt. grown under open field

“…Naringin, hesperidin, myricetin, benzoic acid and quercetin were reported to be the major phenolic components in all the Japonica accessions studied by Ghimire et al (2019) . Rosmarinic acid and scutellarin were the most abundant polyphenolic compounds accumulated in higher amounts in the top leaves of the perilla plant than the lower leaves ( Gaihre et al, 2021 ). Rosmarinic acid has been shown to have anti-inflammatory, antiallergic, antioxidant, hepatoprotective, antibacterial, antiviral, and antinociceptive activities ( Mikami-konishide et al, 2013 , Gaihre et al, 2021 ).…”

“…Rosmarinic acid and scutellarin were the most abundant polyphenolic compounds accumulated in higher amounts in the top leaves of the perilla plant than the lower leaves ( Gaihre et al, 2021 ). Rosmarinic acid has been shown to have anti-inflammatory, antiallergic, antioxidant, hepatoprotective, antibacterial, antiviral, and antinociceptive activities ( Mikami-konishide et al, 2013 , Gaihre et al, 2021 ). This demonstrates that various cultivars have different phenolics as components.…”

“…Perilla frutescens is a functional food, spice and medicinal herb as well as ornamental plant in the family of Lamiaceae. It is a significant therapeutic plant that is generally appropriated in China, India, Korea, Japan, Thailand, Taiwan and Southeast Asia ( Ahmed, 2019 , Ahmed and Al-Zubaidy, 2020 , Gaihre et al, 2021 ). It is generally called perilla or by different names (perilla mint, Chines basil, Korean perilla, beefsteak plant, purple mint, zisu in China, shiso in Japan, and tia to in Vietnam) and one of the important economic herbs that have been cultivated for more than 2000 years ( Asif, 2011 , Ahmed, 2019 ).…”

Comparative Transcriptome Sequencing Analysis to Postulate the Scheme of Regulated Leaf Coloration in Perilla frutescens

“…Perilla frutescens (L.) Britton as an herbaceous plant belongs to Lamiaceae family, and is widely cultivated throughout several Asian countries (Gaihre et al, 2021;Nakajima et al, 2015;. Now, it has been an economic crop and a source of medicine and spices in China, Korea, Japan, and other many countries (Tong et al, 2015).…”

“…frutescens with green leaf is an important oil crop and also used as vegetable crops in Korea, while P. frutescens var. crispa with purple leaf extensively cultivated in China and Japan, are more often used for medicinal properties, sh garnish and ingredient for various foods (Gaihre et al, 2021;Tong et al, 2015).…”