Ryu, Da Hye Cho, Jwa yeong Yang, Seung-Hoon Kim, Ho-Youn 2024-01-12T06:32:27Z 2024-01-12T06:32:27Z 2023-11-22 2023-11 2076-3921 https://pubs.kist.re.kr/handle/201004/79749 The Lamiaceae family is widely recognized for its production of essential oils and phenolic compounds that have promising value as pharmaceutical materials. However, the impact of environmental conditions and different harvest stages on the phytochemical composition of Lamiaceae plants remains poorly understood. This study aimed to investigate the effects of harvest time on the phytochemical composition, including rosmarinic acid (RA) and volatile organic compounds (VOCs), of four Lamiaceae plants―Korean mint (AR), lemon balm (MO), opal basil (OBP), and sage (SO)―and was conducted under an environment-controlled system. Although all four plants had RA as the dominant compound, its distribution varied by species. The flowered plants, including AR and OBP, exhibited a rapid increase of RA during the transition from the vegetative stage to the reproductive stage. In contrast, non-flowered groups, including MO and SO, showed a steady increase in the content of total phenolics and RA. The main components of VOCs also differed depending on the plant, with characteristic fragrance compounds identified for each one (AR: estragole; MO: (Z)-neral and geranial; OBP: methyl eugenol, eugenol, and linalool; and SO: (Z)-thujone, camphor, and humulene). The total VOCs content was highest on the 60th day after transplanting regardless of the species, while the trends of total phenolics, RA content, and antioxidant activities were different depending on whether plant species flowered during the cultivation cycle. There was a steady increase in species that had not flowered, and the highest content and activity of the flowering period were confirmed in the flowering plant species. English MDPI AG Effects of Harvest Timing on Phytochemical Composition in Lamiaceae Plants under an Environment-Controlled System Article 10.3390/antiox12111909 1 Antioxidants, v.12, no.11 Antioxidants 12 11 Y scie scopus 001109519800001 Biochemistry & Molecular Biology Chemistry, Medicinal Food Science & Technology Biochemistry & Molecular Biology Pharmacology & Pharmacy Food Science & Technology Article ROSMARINIC ACID CONTENT BASIL OCIMUM-BASILICUM ESSENTIAL OIL COMPOSITION OREGANO ORIGANUM-VULGARE DIFFERENT GROWTH-STAGES IN-VITRO ANTIOXIDANT PHENOLIC-COMPOUNDS MELISSA-OFFICINALIS PHENYLPROPANOID BIOSYNTHESIS DEVELOPMENTAL REGULATION Lamiaceae plants harvest time phytochemicals rosmarinic acid VOCs antioxidant activities