Influence of elevated CO2 on nutritive value and health-promoting prospective of three genotypes of Alfalfa sprouts (Medicago Sativa)

Almuhayawi, Mohammed S.; Hassan, Abdelrahim H. A.; Jaouni, Soad K. Al; Alkhalifah, Dalal Hussien M.; Hozzein, Wael N.; Selim, Samy; AbdElgawad, Hamada; Khamis, Galal

doi:10.1016/j.foodchem.2020.128147

Cited by 32 publications

(39 citation statements)

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“…Thus, improving the phytochemical content of these plants, particularly their sprouts, is expected to enhance their health-promoting and functional food values. To enhance the nutritional and health-promoting effects of plants and their sprouts, several techniques that make use of environmental conditions have been applied to improve the production of nutritive phytochemicals [20][21][22]. In this regard, the application of laser light as the light source for plant production is a newly growing area of research and the possible positive effects of laser light on growing plants have been investigated.…”

Section: Introductionmentioning

confidence: 99%

Laser Light Treatment of Seeds for Improving the Biomass Photosynthesis, Chemical Composition and Biological Activities of Lemongrass Sprouts

et al. 2021

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Compared to seeds and mature plants, sprouts are well characterized based on their nutritive values and biological properties. Moreover, laser light application is known to be a promising approach to improving plant growth, photosynthesis, and nutraceutical values. However, no studies have investigated the phytochemicals and biological activity of lemongrass (Cymbopogon proximus (Hochst. ex A.Rich.) Chiov.) sprouts or the further improvement of their quality by applying laser light treatment. We carried out a preliminary experiment for the optimization of laser treatment conditions, finding that a helium neon (He–Ne) laser at 632 nm and 5 mW for 5 min provided the most favorable conditions. We then investigated fresh weight, photosynthetic reactions, and primary and secondary metabolites, including sugars, amino acids, organic acids, essential oils, and phenolic compounds. Moreover, we studied the effect of laser light-induced changes in chemical compositions on the antioxidant, anti-diabetic, and anti-cholesterol activities of Cymbopogon proximus sprouts grown from laser-treated seeds. Laser light treatment increased the photosynthesis and respiration and hence the fresh weight of Cymbopogon proximus sprouts. Overall, sprouting increased most bioactive primary and secondary metabolites as compared to seeds. Increased photosynthesis by laser light improved carbon allocation and raised non-structural carbohydrates, which in turn led to improved synthesis of amino acids, organic acids, and essential oils, as well as phenolic and flavonoid compounds. As a result, laser light significantly improved the antioxidant capacity in terms of increasing the levels of ferric reducing antioxidant power (FRAP) (from 9.5 to 21 µmole trolox/g fresh weight (FW)), oxygen radical absorbance (ORAC) (from 400 to 1100 µmole trolox/100 g FW), and DPPH (from 5% to 25% of inhibation) and enhanced the hypocholesterolemic and antidiabetic activity through increasing the percentage of cholesterol micellar solubility (CMS) inhibition (from 42% to 62%) and glycemic index (from 33 to 17 µmole/g) over sprouts and seeds. In conclusion, the synergism of seed laser treatment and sprouting induced the health-promoting bioactive compounds in Cymbopogon proximus as compared to seeds, which can be applied at a large scale to improve the biochemical, physiological, and nutraceutical values of medicinal and crop sprouts.

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Section: Introductionmentioning

confidence: 99%

Laser Light Treatment of Seeds for Improving the Biomass Photosynthesis, Chemical Composition and Biological Activities of Lemongrass Sprouts

et al. 2021

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“…They are collected and consumed before growing true leaves [5]. The sprouting process increases the levels of bioactive compounds and, thus, enhances the health-promoting properties [5,6]. The seeds of L. sativum comprise approximately 22.5% protein, 27.5% lipids, 30% dietary fiber and 1193 mg/100 g potassium, which constitutes the major mineral.…”

Section: Introductionmentioning

confidence: 99%

“…Fortunately, tuning growth conditions has been proved as a powerful agricultural procedure to improve the growth and quality of herbal and medicinal plants [8]. In this aspect, recent publications have reported that growing plants under a CO 2 -enriched atmosphere could be beneficial in modulating tissue chemistry and, therefore, the nutritional and medicinal values of herbal and medicinal plants [5,6,[19][20][21]. In fact, elevated CO 2 (eCO 2 ) could enhance the photosynthetic C assimilation, especially in C3 plant systems, and therefore supply the metabolic energy and precursors that are required to produce the bioactive metabolites.…”

Section: Introductionmentioning

confidence: 99%

“…eCO 2 enhanced the anti-inflammatory and anticancer properties of broccoli sprouts by enhancing photosynthesis and regulating sugar synthesis and breakdown [5]. Further, eCO 2 improved the growth of alfalfa sprouts and increased vitamin, pigment, phenolic acid and flavonoid levels [6]. However, the improved plant yield in response to eCO 2 could come at the cost of lower food quality as plants accumulate more carbohydrates and fewer minerals [22].…”

Section: Introductionmentioning

confidence: 99%

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Lepidium sativum Sprouts Grown under Elevated CO2 Hyperaccumulate Glucosinolates and Antioxidants and Exhibit Enhanced Biological and Reduced Antinutritional Properties

et al. 2021

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The nutritional and health-promoting properties of plants are largely determined by their tissue chemistry. Tuning growth conditions could affect the accumulation of phytochemicals and, therefore, enhance the biological activities. Herein, the impact of elevated CO2 (eCO2; 620 µmol CO2 mol−1 air) on growth and chemical composition of sprouts of three Lepidium sativum cultivars (Haraz, Khider and Rajab) was investigated. Changes in the sprout actions against some human chronic diseases were evaluated. eCO2 induced biomass accumulation (1.46-, 1.47- and 2-fold in Haraz, Khider and Rajab, respectively) and pigment accumulation and reduced the level of antinutrients in L. sativum cultivars. Compared to the control, eCO2 induced total glucosinolate accumulation (0.40-, 0.90- and 1.29-fold in Khider, Haraz and Rajab, respectively), possibly through increased amino acid production, and their hydrolysis by myrosinase. In line with increased polyphenol production, improved phenylalanine ammonia lyase activity was observed. The antioxidant, anti-inflammatory, hypocholesterolemic, antibacterial and anticancer activities of the produced sprouts were significantly improved by sprouting and eCO2 exposure. PCA indicated that the cultivars showed interspecific responses. Thus, the present study confirms the synergistic effect of sprouting with eCO2 exposure as a promising approach to produce more bioactive L. sativum sprouts.

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“…Hence, eCO 2 fertilization could be an effective way to improve the nutritional and health-promoting values of plants [17]. The effect of CO 2 fertilization on the growth and accumulation of bioactive phytochemicals was reported in several plant species, such as broccoli sprouts [18] and buckwheat sprouts [18]. However, to the best of our knowledge, no data are available about the effect of eCO 2 on the growth, nutritive value, or pharmaceutical effects of T. ammi sprouts.…”

Section: Introductionmentioning

confidence: 99%

Exploratory Assessment to Evaluate Seed Sprouting under Elevated CO2 Revealed Improved Biomass, Physiology, and Nutritional Value of Trachyspermum ammi

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Elevated atmospheric CO2 (eCO2) can significantly enhance plant metabolism and improve their nutritional quality. Although several studies addressed the effect of eCO2 on plants, to our knowledge, there are no studies that have applied eCO2 to improve growth, chemical composition, and biological properties of ajwain (Trachyspermum ammi) during sprouting. Herein, eCO2 (620 µmol mol−1) was employed to enhance photosynthetic reactions. Improved photosynthesis induced primary and bioactive secondary metabolism, which led to improved biological activities of T. ammi sprouts in comparison with control sprouts and seeds. eCO2-treated sprouts showed significantly (p < 0.05) higher levels of most measured nutritional primary and secondary metabolites like soluble sugars, essential amino acids, organic acids, essential oils, phenolics, and flavonoids than control sprouts, which had significantly higher values than control seeds. eCO2 significantly improved the antimicrobial properties of T. ammi sprouts against 11 out of 13 microbial species than control sprouts, which had more potent antimicrobial activities than seeds. The significant increase in the antioxidant potential of treated sprouts was indicated by improved levels of ferric reducing antioxidant power (FRAP), DPPH, and oxygen radical absorbance capacity (ORAC). In addition, the anticancer activity against four different human tumor cell lines was significantly (p < 0.05) boosted by both sprouting and eCO2 exposure. Thus, the present study confirms the synergistic effect of sprouting with eCO2 exposure as promising approaches to produce ajwain sprouts with rich nutraceuticals, effective phytochemicals, and enhanced biological activities.

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Influence of elevated CO2 on nutritive value and health-promoting prospective of three genotypes of Alfalfa sprouts (Medicago Sativa)

Cited by 32 publications

References 42 publications

Laser Light Treatment of Seeds for Improving the Biomass Photosynthesis, Chemical Composition and Biological Activities of Lemongrass Sprouts

Laser Light Treatment of Seeds for Improving the Biomass Photosynthesis, Chemical Composition and Biological Activities of Lemongrass Sprouts

Lepidium sativum Sprouts Grown under Elevated CO2 Hyperaccumulate Glucosinolates and Antioxidants and Exhibit Enhanced Biological and Reduced Antinutritional Properties

Exploratory Assessment to Evaluate Seed Sprouting under Elevated CO2 Revealed Improved Biomass, Physiology, and Nutritional Value of Trachyspermum ammi

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