Impact of Sprouting under Potassium Nitrate Priming on Nitrogen Assimilation and Bioactivity of Three Medicago Species

Zrig, Ahlem; Saleh, Ahmed M.; Hamouda, Foued; Okla, Mohammad K.; Al‐Qahtani, Wahidah H.; Alwasel, Yasmeen A.; Al-Hashimi, Abdulrahman; Hegab, Momtaz Y.; Hassan, Abdelrahim H. A.; AbdElgawad, Hamada

doi:10.3390/plants11010071

Cited by 11 publications

(18 citation statements)

References 42 publications

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“…Seed priming with potassium nitrate (KNO 3 ) improves seedling establishment and plant vigor [138]. Sprouts of three Medicago species treated with KNO 3 showed increased total phenolic and flavonoid contents and enhanced antioxidant and antidiabetic activities [93]. The response of KNO 3 priming was species-specific, with Medicago intertexta showing the highest antioxidant and antidiabetic activities, followed by M. polymorpha and M. indicus.…”

Section: Seed Priming and Biostimulantsmentioning

confidence: 99%

Sprouts and Microgreens—Novel Food Sources for Healthy Diets

Ebert

2022

Plants

115

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With the growing interest of society in healthy eating, the interest in fresh, ready-to-eat, functional food, such as microscale vegetables (sprouted seeds and microgreens), has been on the rise in recent years globally. This review briefly describes the crops commonly used for microscale vegetable production, highlights Brassica vegetables because of their health-promoting secondary metabolites (polyphenols, glucosinolates), and looks at consumer acceptance of sprouts and microgreens. Apart from the main crops used for microscale vegetable production, landraces, wild food plants, and crops’ wild relatives often have high phytonutrient density and exciting flavors and tastes, thus providing the scope to widen the range of crops and species used for this purpose. Moreover, the nutritional value and content of phytochemicals often vary with plant growth and development within the same crop. Sprouted seeds and microgreens are often more nutrient-dense than ungerminated seeds or mature vegetables. This review also describes the environmental and priming factors that may impact the nutritional value and content of phytochemicals of microscale vegetables. These factors include the growth environment, growing substrates, imposed environmental stresses, seed priming and biostimulants, biofortification, and the effect of light in controlled environments. This review also touches on microgreen market trends. Due to their short growth cycle, nutrient-dense sprouts and microgreens can be produced with minimal input; without pesticides, they can even be home-grown and harvested as needed, hence having low environmental impacts and a broad acceptance among health-conscious consumers.

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Section: Seed Priming and Biostimulantsmentioning

confidence: 99%

Sprouts and Microgreens—Novel Food Sources for Healthy Diets

Ebert

2022

Plants

115

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“…Another eco-friendly and economical technique was adopted to curtail the effects of climate change, such as seed priming [ 9 ]. Seed priming improves growth parameters, enhances bioactive component accumulation, and increases antioxidant and anti-diabetic activity [ 10 , 11 ]. For instance, hormonal seed priming is frequently used to improve germination and agricultural crops in difficult settings [ 5 ].…”

Section: Introductionmentioning

confidence: 99%

The Interaction Effect of Laser Irradiation and 6-Benzylaminopurine Improves the Chemical Composition and Biological Activities of Linseed (Linum usitatissimum) Sprouts

Zrig

Najar

Korany

et al. 2022

Biology

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Even though laser light (LL) and 6-benzylaminopurine (BAP) priming are well-known as promising strategies for increasing the growth and nutritional value of several plants, no previous studies have investigated their synergistic effect. Herein, we investigated the effects of laser light, 6-benzylaminopurine (BAP) priming, and combined LL-BAP treatment on the nutritional value, chemical composition, and the biological activity of Linum usitatissimum sprouts. The fresh weight, leaf pigments, primary and secondary metabolites, enzymes, and antimicrobial activities were determined. A substantial enhancement was observed in the growth characteristics and leaf pigments of laser-irradiated and BAP-primed sprouts. Furthermore, the combined treatments improved the accumulation of minerals, vitamins, and amino acids, and also enhanced the N-metabolism more than LL or BAP alone. Furthermore, the combined priming boosted the antioxidant capacity by increasing the contents of fatty acids, phenols, and flavonoids. Antimicrobial activity and the highest increase in bioactive compounds were recorded in linseed sprouts simultaneously treated with LL and BAP. This work suggests that priming L. usitatissimum sprouts with laser light and BAP is a promising approach that can improve the nutritional value and health-promoting impacts of L. usitatissimum sprouts.

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“…It is believed that exogenous AsA as seed pretreatment can effectively regulate and improve the endogenous AsA as well as tocopherol levels . Noteworthily, the positive effect of KNO 3 priming on vitamin contents indicates the potential use of linseed sprouts as a remarkable source of vitamins for supporting immunity . Priming with KNO 3 improved the nutritive value in linseed sprouts by accumulating minerals.…”

Section: Discussionmentioning

confidence: 99%

“…In this regard, KNO 3 priming induced nutrient accumulation in seedling of Medicago. 35 4.3. AsA Priming Increased the Antibacterial Activity of Linseed Sprouts more than KNO 3 Priming.…”

Section: How Priming With Kno 3 or Asa Improvedmentioning

confidence: 99%

Potassium Nitrate and Ascorbic Acid Priming Improved Tissue Chemical Composition and Antioxidant and Antimicrobial Activities of Linseed (Linum usitatissimum L.) Sprouts

Zrig,

Yousif Sidahmed Elsheikh,

Hamouda

et al. 2023

ACS Omega

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Potassium nitrate (KNO 3 ) and ascorbic acid (AsA) priming can effectively boost biomass accumulation and nutritional value of plants; nevertheless, few studies investigated their effects on seed sprouting. Thus, we aimed to explore the effects of KNO 3 and AsA priming on linseed (Linum usitatissimum L.) sprout growth and assess the changes in bioactive compound levels, which provide valuable insights into the potential benefits of these priming treatments on sprout quality and nutritional value. To this end, germination, biomass accumulation, photosynthetic pigments, primary and secondary metabolites, and mineral profiles in the primed sprouts were evaluated. Moreover, to assess the impact on biological value, we determined the antioxidant and antimicrobial activities of the treated sprout extract. A marked enhancement was observed in germination and pigment levels of KNO 3 -and AsA-primed sprouts. These increases were in line with induced primary metabolites (e.g., carbohydrate and amino acid contents), particularly under KNO 3 treatment. There was also an increase in amino acid metabolism (e.g., increased GS, GDH, and GOGAT enzyme activities), nitrogen level, and nitrate reductase (NR) activity. The linseed sprouts primed with AsA exhibited strong antioxidant and antibacterial activities. Consistently, high levels of polyphenols, flavonoids, total AsA, and tocopherols, as well as improved activity of antioxidant enzymes [peroxidase (POX), catalase (CAT), and superoxide dismutase (SOD)], were recorded. This study proposes KNO 3 and AsA priming as an innovative approach to improving the nutritional and health-promoting properties of linseed sprouts. This knowledge will contribute to a better understanding of the biochemical processes involved in improving the nutritional quality and functional benefits of linseed sprouts.

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Impact of Sprouting under Potassium Nitrate Priming on Nitrogen Assimilation and Bioactivity of Three Medicago Species

Cited by 11 publications

References 42 publications

Sprouts and Microgreens—Novel Food Sources for Healthy Diets

Sprouts and Microgreens—Novel Food Sources for Healthy Diets

The Interaction Effect of Laser Irradiation and 6-Benzylaminopurine Improves the Chemical Composition and Biological Activities of Linseed (Linum usitatissimum) Sprouts

Potassium Nitrate and Ascorbic Acid Priming Improved Tissue Chemical Composition and Antioxidant and Antimicrobial Activities of Linseed (Linum usitatissimum L.) Sprouts

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