Melatonin treatment maintains nutraceutical properties of pomegranate fruits during cold storage

Aghdam, Morteza Soleimani; Luo, Zisheng; Li, Li; Jannatizadeh, Abbasali; Fard, Javad Rezapour; Pirzad, Farhad

doi:10.1016/j.foodchem.2019.125385

Cited by 160 publications

(88 citation statements)

References 38 publications

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“…Additionally, melatonin is involved in flowering, fruit setting and ripening [ 82 ]. In fact, treatment with melatonin improves the postharvest and storage quality of strawberries and pomegranates [ 83 , 84 ] and confers chilling tolerance to tomato fruits [ 85 ].…”

Section: Resultsmentioning

confidence: 99%

Identification of Compounds with Potential Therapeutic Uses from Sweet Pepper (Capsicum annuum L.) Fruits and Their Modulation by Nitric Oxide (NO)

Guevara

Domínguez-Anaya

Ortigosa

et al. 2021

IJMS

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Plant species are precursors of a wide variety of secondary metabolites that, besides being useful for themselves, can also be used by humans for their consumption and economic benefit. Pepper (Capsicum annuum L.) fruit is not only a common food and spice source, it also stands out for containing high amounts of antioxidants (such as vitamins C and A), polyphenols and capsaicinoids. Particular attention has been paid to capsaicin, whose anti-inflammatory, antiproliferative and analgesic activities have been reported in the literature. Due to the potential interest in pepper metabolites for human use, in this project, we carried out an investigation to identify new bioactive compounds of this crop. To achieve this, we applied a metabolomic approach, using an HPLC (high-performance liquid chromatography) separative technique coupled to metabolite identification by high resolution mass spectrometry (HRMS). After chromatographic analysis and data processing against metabolic databases, 12 differential bioactive compounds were identified in sweet pepper fruits, including quercetin and its derivatives, L-tryptophan, phytosphingosin, FAD, gingerglycolipid A, tetrahydropentoxylin, blumenol C glucoside, colnelenic acid and capsoside A. The abundance of these metabolites varied depending on the ripening stage of the fruits, either immature green or ripe red. We also studied the variation of these 12 metabolites upon treatment with exogenous nitric oxide (NO), a free radical gas involved in a good number of physiological processes in higher plants such as germination, growth, flowering, senescence, and fruit ripening, among others. Overall, it was found that the content of the analyzed metabolites depended on the ripening stage and on the presence of NO. The metabolic pattern followed by quercetin and its derivatives, as a consequence of the ripening stage and NO treatment, was also corroborated by transcriptomic analysis of genes involved in the synthesis of these compounds. This opens new research perspectives on the pepper fruit’s bioactive compounds with nutraceutical potentiality, where biotechnological strategies can be applied for optimizing the level of these beneficial compounds.

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Section: Resultsmentioning

confidence: 99%

Identification of Compounds with Potential Therapeutic Uses from Sweet Pepper (Capsicum annuum L.) Fruits and Their Modulation by Nitric Oxide (NO)

Guevara

Domínguez-Anaya

Ortigosa

et al. 2021

IJMS

View full text Add to dashboard Cite

show abstract

“…Additionally, melatonin is involved in flowering, fruit setting and ripening [84]. In fact, treatment with melatonin improves the postharvest and storage quality of strawberry and pomegranate [85,86] and confers chilling tolerance to tomato fruits [87].…”

Section: L-tryptophanmentioning

confidence: 99%

Identification of Compounds with Potential Therapeutic Uses from Sweet Pepper (<em>Capsicum annuum</em> L.) Fruits and Their Modulation by Nitric Oxide (NO)

Guevara¹,

Domínguez-Anaya²,

Ortigosa³

et al. 2021

Preprint

View full text Add to dashboard Cite

Plant species are precursors of a wide variety of secondary metabolites that, besides having useful activity for themselves, can also be used by humans for their consumption and economic benefit. Pepper (Capsicum annuum L.) fruit is not only a common food and spice source, but it also stands out for containing high amounts of antioxidants (such as vitamins C and A), polyphenols and capsaicinoids. Particular attention has been paid to capsaicin, whose anti-inflammatory, antiproliferative and analgesic activities, have been proven. Due to the potential interest in pepper metabolites for human use, in this project, we carried out an investigation to identify new bioactive compounds of this crop is carried out. To achieve this, we developed a metabolomic approach, using an HPLC (high-performance liquid chromatography) separative technique coupled to metabolite identification by high resolution mass spectrometry (HRMS). After chromatographic analysis and data processing against metabolic databases, 12 differential bioactive compounds were identified in sweet pepper fruits, including quercetin and its derivatives, L-tryptophan, phytosphingosin, FAD, gingerglycolipid A, tetrahydropentoxylin, blumenol C glucoside, colnelenic acid and capsoside A. The abundance of these metabolites varied depending on the ripening stage of the fruits, either immature green or ripe red. We also studied the variation of these 12 metabolites upon treatment with exogenous nitric oxide (NO), a free radical gas involved in a good number of physiological processes in higher plants such as germination, growth, flowering, senescence, and fruit ripening, among others. Overall, it was found that the content of the analysed metabolites was modulated by the ripening stage and by the presence of NO. The metabolic pattern followed by quercetin and its derivatives, as a consequence of the ripening stage and NO treatment, was also corroborated by transcriptomic analysis of genes involved in the synthesis of these compounds. This opens new research windows on the pepper fruit’s bioactive compounds with nutraceutical potentiality, where biotechnological strategies can be applied for optimizing the level of these beneficial compounds.

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“…In addition, CI of MT-treated pomegranate fruit was greatly inhibited by decreasing ion leakage and MDA content [ 7 ]. Other studies have depicted that the quality maintenance of horticultural crops subjected to MT may be ascribed to the higher levels of chlorophyll, total phenols, and anthocyanin [ 8 , 9 ]. However, little information concerning the effect of MT on CI control and quality maintenance of bitter melon has been reported.…”

Section: Introductionmentioning

confidence: 99%

A Combination of Melatonin and Ethanol Treatment Improves Postharvest Quality in Bitter Melon Fruit

Lin

Wang

Hou

et al. 2020

Foods

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Central composite design (CCD), utilized with three independent variables, verified that the optimal treatment conditions in bitter melon fruit were melatonin (MT) concentration of 120 µmol L−1, ethanol concentration of 6%, and immersing time of 10 min. Under optimal conditions, the experimental values of firmness, chilling injury (CI) index, and weight loss were shown as 27.81 N, 65.625%, and 0.815%, respectively. Moreover, the combined effect of MT and ethanol on CI and physiological quality in postharvest bitter melon fruit stored at 4 °C was investigated. It was found that the combined treatment contributed to the reduced CI symptoms and inhibited ion leakage and malondialdehyde (MDA) accumulation. Moreover, higher levels of chlorophyll, total soluble solids (TSSs), soluble sugar, soluble protein, and ascorbic acid (AsA) were observed in comparison with the control group. Furthermore, the synthesis of total phenols and flavonoids in bitter melon was greatly promoted. Therefore, the combination of MT and ethanol could have the potential for alleviating CI and maintaining postharvest quality for the duration of cold storage.

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Melatonin treatment maintains nutraceutical properties of pomegranate fruits during cold storage

Cited by 160 publications

References 38 publications

Identification of Compounds with Potential Therapeutic Uses from Sweet Pepper (Capsicum annuum L.) Fruits and Their Modulation by Nitric Oxide (NO)

Identification of Compounds with Potential Therapeutic Uses from Sweet Pepper (Capsicum annuum L.) Fruits and Their Modulation by Nitric Oxide (NO)

Identification of Compounds with Potential Therapeutic Uses from Sweet Pepper (<em>Capsicum annuum</em> L.) Fruits and Their Modulation by Nitric Oxide (NO)

A Combination of Melatonin and Ethanol Treatment Improves Postharvest Quality in Bitter Melon Fruit

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