Short peptides secreted by Bacillus subtilis inhibit the growth of mold on fresh‐cut pumpkin (<scp>Cucurbita pepo</scp>)

Qiao, Huitian; Zhang, Bo; Chen, Xiangning; Su, Lijing; Jiao, Chang; Chen, Si; Fan, Jie; Liu, Huijun

doi:10.1002/jsfa.10021

Cited by 3 publications

(3 citation statements)

References 16 publications

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“…The firmness of fresh-cut pumpkins is easily affected by moisture content, lignin formation, and oxidation [27]. Figure 1b shows that the firmness of the four groups of freshcut pumpkins decreased rapidly and then increased slowly.…”

Section: Weight Loss and Firmnessmentioning

confidence: 99%

“…Similar results were found in fresh-cut carrots [17] and white buttons [28], which indicated that nisin was extremely well maintained in the color of fruit and vegetables. The firmness of fresh-cut pumpkins is easily affected by moisture content, lignin formation, and oxidation [27]. Figure 1b shows that the firmness of the four groups of fresh-cut pumpkins decreased rapidly and then increased slowly.…”

Section: Whitening Index (Wi)mentioning

confidence: 99%

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Effect of Nisin on the Quality and Antioxidant Activity of Fresh-Cut Pumpkins (Cucurbita moschata Duch.)

Yuan

Wang

Guan³

et al. 2023

Horticulturae

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Fresh-cut pumpkins refer to fresh pumpkin that has been graded, cleaned, peeled, sliced, preserved, and packaged. It has the qualities of freshness, nutrition, convenience, and being 100% edible. However, mechanical damages during the cutting processing can accelerate the quality deterioration, aging, and loss of nutritional values of fresh-cut pumpkins. Nisin, a natural preservative, has been widely used in fruits and vegetables with good preservation effects. To investigate the effect of different concentrations (0, 0.2, 0.4, and 0.6 g/L) of nisin on the quality of fresh-cut pumpkins, the critical indexes involved in weight loss, firmness, color, respiration intensity, reactive oxygen species (ROS) metabolism, ascorbate (AsA)—glutathione (GSH) cycle, and antioxidant capacity were monitored for fresh-cut pumpkins during storage at 4 °C for 10 days. The results showed that 0.4 g/L nisin was the best preservation concentration. Compared with 0 g/L nisin, 0.4 g/L nisin reduced the weight loss rate and whitening rate of fresh-cut pumpkins by 13.53% and 13.61%, inhibited respiration rate by 45.83%, and maintained hardness by 1.18 times. Meanwhile, 0.4 g/L nisin increased the activities of superoxide dismutase (SOD), catalase (CAT), ascorbate peroxidase (APX), and glutathione reductase (GR) and maintained higher contents of GSH and AsA. It prevented the rapid increase in ROS levels by improving antioxidant capacity, including DPPH, ABTS free radical scavenging rate, and T-AOC (total antioxidant capacity). The collected results showed that nisin has an obvious influence on the quality by regulating physiological and antioxidant activity metabolism. It is envisaged that the combination of nisin and physical and chemical preservation technology will further enhance the quality of fresh-cut pumpkins during storage in the future.

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Section: Weight Loss and Firmnessmentioning

confidence: 99%

Section: Whitening Index (Wi)mentioning

confidence: 99%

Effect of Nisin on the Quality and Antioxidant Activity of Fresh-Cut Pumpkins (Cucurbita moschata Duch.)

Yuan

Wang

Guan³

et al. 2023

Horticulturae

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“…His (2-aryl)-Trp-Arg has been reported to antagonize Cryptococcus neoformans ( Sharma et al, 2021 ). In B. subtilis , 57 peptides with less than five amino acids were found to have antifungal activity, among which two tetrapeptides AWYW and HWWY strongly suppressed the growth of Phytophthora capsici and Penicillin chrysogenum ( Qiao et al, 2020 ).…”

Section: Introductionmentioning

confidence: 99%

His-Ala-Phe-Lys peptide from Burkholderia arboris possesses antifungal activity

Zhu

Chen

et al. 2022

Front. Microbiol.

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Burkholderia arboris, which belongs to the Burkholderia cepacia complex, has been shown to possess antifungal activity against several plant fungal pathogens; however, the antifungal compounds are yet to be identified. Here, we identified the antifungal compounds produced by B. arboris using genetic and metabolomic approaches. We generated a Tn5 transposon mutation library of 3,000 B. arboris mutants and isolated three mutants with reduced antifungal activity against the plant fungal pathogen Fusarium oxysporum. Among the mutants, the M464 mutant exhibited the weakest antifungal activity. In the M464 genome, the transposon was inserted into the cobA gene, encoding uroporphyrin-III methyltransferase. Deletion of the cobA gene also resulted in reduced antifungal activity, indicating that the cobA gene contributed to the antifungal activity of B. arboris. Furthermore, a comparison of the differential metabolites between wild type B. arboris and the ∆cobA mutant showed a significantly decreased level of tetrapeptide His-Ala-Phe-Lys (Hafk) in the ∆cobA mutant. Therefore, a Hafk peptide with D-amino acid residues was synthesized and its antifungal activity was evaluated. Notably, the Hafk peptide displayed significant antifungal activity against F. oxysporum and Botrytis cinerea, two plant pathogens that cause destructive fungal diseases. Overall, a novel antifungal compound (Hafk) that can be used for the biocontrol of fungal diseases in plants was identified in B. arboris.

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Litsea cubeba Essential Oil: Component Analysis, Anti-Candida albicans Activity and Mechanism Based on Molecular Docking

Kong

et al. 2022

J. Oleo Sci.

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spices, food, chemical industry and other fields. L. cubeba, is one of the unique aromatic plants in China, deciduous shrubs or small trees, with high appreciation value and application value. The L. cubeba essential oil generally refers to the essential oil distilled from L. cubeba fruit, with trans-citral, cis-citral, d-limonene other chemical components 3) . The L. cubeba essential oil can against V. parahaemolyticus, L monocytogenes, L plantarum, and H. anomala 4) , Botrytis cinerea, a fungus that causes the putrification of fruits and vegetables 5) . Furthermore, L.

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Short peptides secreted by Bacillus subtilis inhibit the growth of mold on fresh‐cut pumpkin (Cucurbita pepo)

Cited by 3 publications

References 16 publications

Effect of Nisin on the Quality and Antioxidant Activity of Fresh-Cut Pumpkins (Cucurbita moschata Duch.)

Effect of Nisin on the Quality and Antioxidant Activity of Fresh-Cut Pumpkins (Cucurbita moschata Duch.)

His-Ala-Phe-Lys peptide from Burkholderia arboris possesses antifungal activity

<i>Litsea cubeba</i> Essential Oil: Component Analysis, Anti-<i>Candida albicans</i> Activity and Mechanism Based on Molecular Docking

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