Analysis of the Antioxidant Capacity of Lettuce Growth at Different Fertilizer Regimes

Geneva, Maria; Kostadinov, K.; Filipov, Stoyan; Kirova, Elisaveta; Stancheva, Ira

doi:10.7546/crabs.2021.01.18

Cited by 5 publications

(4 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Based on the above mentioned and obtained results, it can be concluded that that cultivated leafy vegetables abound antioxidants and thus present a high value nutritional raw material. According to other studies, the lettuce and green chicory species analyzed in this study, regardless of MIS, are vegetables that have significant antioxidant properties, i.e., high levels of antioxidant capacity [32,37,47].…”

Section: Antioxidant Capacitymentioning

confidence: 99%

Plant Response to Mechanically-Induced Stress: A Case Study on Specialized Metabolites of Leafy Vegetables

Žlabur

Radman

Uher

et al. 2021

Plants

View full text Add to dashboard Cite

Plants have evolved various adaptive mechanisms to environmental stresses, such as sensory mechanisms to detect mechanical stimuli. This plant adaptation has been successfully used in the production practice of leafy vegetables, called mechanical conditioning, for many years, but there is still a lack of research on the effects of mechanically-induced stress on the content of specialized metabolites, or phytochemicals with significant antioxidant activity. Therefore, the aim of this study was to determine the content of specialized metabolites and antioxidant capacity of lettuce and green chicory under the influence of mechanical stimulation by brushing. Mechanically-induced stress had a positive effect on the content of major antioxidants in plant cells, specifically vitamin C, total phenols, and flavonoids. In contrast, no effect of mechanical stimulation was found on the content of pigments, total chlorophylls, and carotenoids. Based on the obtained results, it can be concluded that induced mechanical stress is a good practice in the cultivation of leafy vegetables, the application of which provides high quality plant material with high nutritional potential and significantly higher content of antioxidants and phytochemicals important for human health.

show abstract

Section: Antioxidant Capacitymentioning

confidence: 99%

Plant Response to Mechanically-Induced Stress: A Case Study on Specialized Metabolites of Leafy Vegetables

Žlabur

Radman

Uher

et al. 2021

Plants

View full text Add to dashboard Cite

show abstract

“…In addition, red oak lettuce extracted in water and also in alcohol had stronger radical scavenging activity than green oak lettuce 25 . Green oak lettuce showed the highest antioxidant activity for the DPPH assay.…”

Section: Resultsmentioning

confidence: 91%

Analysis of Antioxidant Activities, Bioactive Compound Content, and Cytotoxic Effects of Green Oak and Red Oak Lettuce from Hydroponic and Organic Cultivation Systems

2024

TJNPR

View full text Add to dashboard Cite

Comparing the antioxidant potential of organic and hydroponically grown red oak and green oak lettuce, this study investigated whether lettuce grown hydroponically possessed anticancer properties. Whereas, organic farming, recognized for its sustainability and positive impact on soil fertility, contrasts with the technological advancements of hydroponic farming. This work aimed to test the effects of different cultivation techniques on the antioxidant content of salad vegetables, providing insights into the potential health benefits associated with these popular farming practices. Current understanding of the nutritional quality of hydroponically grown lettuce has recently improved. Moreover, plant phytochemicals can inhibit the growth of cancer cell lines. 6 Therefore, this study examined the phytochemicals in hydroponically grown lettuce and their cytotoxicity toward HepG2 cells, highlighting the broader implications of hydroponic farming on human health risks associated with consuming lettuce harvested from hydroponic systems. This research study marked the first demonstration of the antioxidant capacity of organic and hydroponic red oak lettuce, which exhibited anticancer attributes. Materials and Methods Plant culture systemsGreen and red oak lettuce varieties grown for 45 days in November to December, 2023 in organic without chemical fertilizers and hydroponic farming systems were obtained from a local farmer in Maha Sarakham Province, Thailand (GPS location; Latitude: 16.1842 Longitude: 103.3003 16° 10′ 38″ N, 103° 18′ 3″ E). Voucher numbers for collected samples are BIO012023 for green oak lettuce and BIO022023 for red oak lettuce and archived at

show abstract

“…Medicinal plants have long been reported as a valuable source of natural antioxidant compounds, particularly plant secondary metabolites, i.e., phenolic compounds and flavonoids, which are generated by plants to defend themselves or to promote growth under unfavorable conditions [80][81][82]. Phenolics and flavonoids are commonly known as the largest phytochemical molecules with antioxidant properties from plants, which may prevent the degenerative effect (oxidative stress) from unbalanced concentration of reactive oxygen species (ROS) and reactive nitrogen species (RNS) [83][84][85]. Different researchers have confirmed the antibacterial activity of plant-derived compounds such as flavonoids, hydroxycinnamic, and phenolcarboxylic acids and their esters [86][87][88].…”

Section: Discussionmentioning

confidence: 99%

Application of the Natural Products NOZEMAT HERB and NOZEMAT HERB PLUS Can Decrease Honey Bee Colonies Losses during the Winter

et al. 2021

View full text Add to dashboard Cite

Honey bees (Apis mellifera L.) are crucial pollinators for many crops and natural ecosystems. However, honey bee colonies have been experiencing heavy overwinter mortality in almost all parts of the world. In the present study we have investigatеd, for the first time, the effects from the application of the herbal supplements NOZEMAT HERB® (NH) and NOZEMAT HERB PLUS® (NHP) on overwintering honey bee colony survival and on total protein and lysozyme content. To achieve this, in early autumn 2019, 45 colonies were selected and treated with these herbal supplements. The total protein and lysozyme content were evaluated after administration of NH and NHP twice the following year (June and September 2020). The obtained results have shown that both supplements have a positive effect on overwintering colony survival. Considerable enhancement in longevity of “winter bees” has been observed after the application of NHP, possibly due to the increased functionality of the immune system and antioxidant detoxification capacity. Although the mechanisms of action of NH and NHP are yet to be completely elucidated, our results suggest a new holistic approach on overwintering honey bee colony survival and welfare.

show abstract

Analysis of the Antioxidant Capacity of Lettuce Growth at Different Fertilizer Regimes

Cited by 5 publications

References 0 publications

Plant Response to Mechanically-Induced Stress: A Case Study on Specialized Metabolites of Leafy Vegetables

Plant Response to Mechanically-Induced Stress: A Case Study on Specialized Metabolites of Leafy Vegetables

Analysis of Antioxidant Activities, Bioactive Compound Content, and Cytotoxic Effects of Green Oak and Red Oak Lettuce from Hydroponic and Organic Cultivation Systems

Application of the Natural Products NOZEMAT HERB and NOZEMAT HERB PLUS Can Decrease Honey Bee Colonies Losses during the Winter

Contact Info

Product

Resources

About