Harvest time optimization for medicinal and aromatic plant secondary metabolites

Hazrati, Saeid; Mousavi, Zahra; Nicola, Silvana

doi:10.1016/j.plaphy.2024.108735

Plant Physiology and Biochemistry

2024

DOI: 10.1016/j.plaphy.2024.108735

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Harvest time optimization for medicinal and aromatic plant secondary metabolites

Saeid Hazrati,

Zahra Mousavi,

Silvana Nicola

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2024

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Cited by 2 publications

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Phytochemical composition, hypnotic activity, and antinociceptive properties of cumin essential oil collected from various geographical regions

Nouri,

Mofasseri,

Jahani

et al. 2024

Food Science & Nutrition

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The quantity and quality of the active components of plants are strongly influenced by environmental factors. In this regard, dried cumin seeds were collected from four different locations (SaadatShahr (P1) and Sarvestan (P2) from Fars Province and Kashmar (P3) and Sabzevar (P4) from Khorasan), and their essential oils were isolated by Clevenger apparatus and evaluated using GC and GC–MS. In addition, the hypnotic and antinociceptive activities of the cumin EO sample, which had the highest yield and quality, respectively, were assessed via the pentobarbital‐induced loss of righting test and acetic acid‐induced writhing test. Our results showed that the highest amount of EO was present in sample P4 (3.63%), followed by P3 (2.92%), P2 (2.69%), and P1 (2.31%). GC–MS analysis revealed cuminaldehyde (21.31–33.60%), γ‐terpinene (13.68–23.29%), p‐mentha‐1,4‐dien‐7‐al (14.44–20.84%), p‐mentha‐1,3‐dien‐7‐al (10.06–14.02%), β‐pinene (9.32–11.46%), and p‐cymene (3.16–7.89%) were the major constituents in all the populations. Generally, the results showed that the seeds harvested from areas with hotter and drier climates (P3 and P4) had higher EO yields and cuminaldehyde concentrations but had moderate amounts of γ‐terpinene, β‐pinene, and p‐cymene. In addition, the hypnotic (100 and 200 mg/kg) and antinociceptive (25, 50, and 100 mg/kg) effects of cumin EO were proven in animal models.

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Phytochemical composition, hypnotic activity, and antinociceptive properties of cumin essential oil collected from various geographical regions

Nouri,

Mofasseri,

Jahani

et al. 2024

Food Science & Nutrition

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Dynamics of Growth and Galanthamine Biosynthesis in Hippeastrum papilio (Ravena) Van Sheepen Hydroponic Culture

Haist,

Sidjimova,

Denev

et al. 2024

Agronomy

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Hippeastrum papilio (Ravena) van Sheepen is a bulbous evergreen species and considered a potential new source of galanthamine. This natural compound approved by the FDA is used for the cognitive treatment of Alzheimer’s disease. To optimize the galanthamine yield from this species, it is necessary to study the effects of plant age and fertilization on the alkaloid content, as well as alkaloid and biomass accumulation dynamics in plant organs. H. papilio plants of different ages, which were ex vitro acclimatized (age 0) and previously grown for one (age 1) and two (age 2) vegetation seasons, were cultivated in a flood and drain hydroponic system with different fertilizer solutions for six months. Samples from the roots, bulbs, and leaves were gathered at the end of the vegetation, and the fresh and dry biomasses were measured and then analyzed by GC–MS to establish their alkaloid content. Depending on the age and fertilizer, the galanthamine content varied from 4.5 ± 1.8 to 11.2 ± 2.8 mg/g DW in the roots, from 3.4 ± 0.5 to 5.8 ± 1.3 mg/g DW in the bulbs, and from 3.2 ± 0.3 to 5.7 ± 0.6 mg/g DW in the leaves. The main part (53–61%) of galanthamine was accumulated in the bulbs, while the leaves and roots stored 25–30% and 13–19%, respectively. Higher amounts of N, K, and Ca in the fertilizer did not positively influence the alkaloid yield in plants of ages 1 and 2. Despite the lower biomass accumulation per individual, the plants grown for two seasons (age 1) showed a comparable galanthamine yield (per square meter) at the end of vegetation to those grown for three seasons (age 2) due to their higher density of cultivation. The dynamics of alkaloid and biomass accumulation, studied in plants from age 1 during the vegetation season, showed that the highest galanthamine content in the plant organs is at the beginning of vegetation. Still, the end of vegetation is the best time to harvest the plant biomass for galanthamine extraction. Hydroponic cultivation of H. papilio is an interesting alternative for the production of galanthamine.

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Harvest time optimization for medicinal and aromatic plant secondary metabolites

Cited by 2 publications

References 198 publications

Phytochemical composition, hypnotic activity, and antinociceptive properties of cumin essential oil collected from various geographical regions

Phytochemical composition, hypnotic activity, and antinociceptive properties of cumin essential oil collected from various geographical regions

Dynamics of Growth and Galanthamine Biosynthesis in Hippeastrum papilio (Ravena) Van Sheepen Hydroponic Culture

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