The growth responses and antioxidant capabilities of melinjo (Gnetum gnemon L.) in different durations of drought stress

Siswoyo, Tri Agus; Arum, Laras Sekar; Sanjaya, Bella Rhea Lavifa; Aisyah, Zahela Siti

doi:10.1016/j.aoas.2021.05.003

Cited by 11 publications

(6 citation statements)

References 36 publications

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“…Secondary metabolites react with radical forms as antioxidants and protect macromolecules from oxidation processes. Increased activity of antioxidants during dehydration was found in tomato [83], melinjo [84], sweet leaf [85] and many other plant species. The results showed that PEG-induced water deficit also increased antioxidant activity in I. walleriana leaves (Figure 9).…”

Section: Discussionmentioning

confidence: 99%

Does Sodium Nitroprusside Alleviate Water Deficit Stress in Impatiens walleriana Shoots Grown In Vitro?

Đurić,

Trifunović-Momčilov,

Milošević

et al. 2023

Agriculture

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Impatiens walleriana is a decorative horticultural plant species. Commercial production requires that the plants be brought to market, often accompanied by reduced water content during transport. Drought significantly affects metabolic processes in plants. The effects of polyethylene glycol (PEG)-induced water deficit on shoots of I. walleriana were investigated using different mechanisms at the biochemical level. In addition, the potential water deficit-ameliorating effect of sodium nitroprusside (SNP) was tested. Shoots of I. walleriana were initially grown on MS media supplemented with SNP (50, 100 and 250 μM). After pre-treatments, shoots were further transferred to media supplemented with PEG8000 (3%) and/or SNP (50, 100 and 250 μM). Water deficit conditions increased proline, photosynthetic pigments, malondialdehyde (MDA), H2O2, total phenolic content and antioxidant activity. In addition, PEG-induced water deficit increased superoxide dismutase (SOD) and peroxidase (POX) activities but decreased catalase (CAT) activity. SNP did not significantly affect photosynthetic pigments and total phenolic content but increased proline accumulation, MDA and H2O2 content, especially when applied simultaneously with PEG. Moreover, none of the investigated SNP pretreatments significantly altered the activities of SOD, POX, and CAT in I. walleriana. The results indicate that exogenous application of SNP effectively alleviated water deficit stress in shoots of I. walleriana grown in vitro.

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Section: Discussionmentioning

confidence: 99%

Does Sodium Nitroprusside Alleviate Water Deficit Stress in Impatiens walleriana Shoots Grown In Vitro?

Đurić,

Trifunović-Momčilov,

Milošević

et al. 2023

Agriculture

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“…The superoxide scavenging activities of EPS-LB13 and EPS-MLB10 were determined by investigating superoxide dismutase (SD) and superoxide anion scavenging (SAS) activities, which were measured according to the method described by ( Siswoyo, Arum, Sanjaya, & Aisyah, 2021 ) at 420 nm and 320 nm absorbance, respectively. The rate of inhibition of pyrogallol oxidation was calculated by:

…”

Section: Methodsmentioning

confidence: 99%

Exopolysaccharides from Enterococcus faecium and Streptococcus thermophilus: Bioactivities, gut microbiome effects, and fermented milk rheology

Tarique,

Ali,

Kizhakkayil

et al. 2024

Food Chemistry: X

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“…A discoloring assay applicable to both aqueous and lipophilic systems was used to perform the ABTS radical scavenging according to the method of Re et al [ 41 ] and updated by Siswoyo et al [ 42 ]. ABTS .+ was generated by mixing 7 mM ABTS and 2.45 mM potassium persulfate after incubation at room temperature (25 °C) in the dark for 16–24 h. ABTS stock solution was prepared, and its absorbance was adjusted at 0.700.…”

Section: Methodsmentioning

confidence: 99%

Valorization of Bioactive Compounds from Two Underutilized Wild Fruits by Microencapsulation in Order to Formulate Value-Added Food Products

Konaré

Condurache²,

Togola³

et al. 2023

Plants

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Currently, microencapsulation has become a viable method of nutrient delivery for the food industry. This work microencapsulated the bioactive compounds extracted from two neglected species (Balanites aegyptiaca and Ziziphus mauritiana) by freeze-drying. A combination of wall materials (whey protein and pectin; soy protein and maltodextrin) was chosen to prepare the microcapsules. The phytochemical and physicochemical characterization of the microcapsules was then carried out. The encapsulation yield ranged from 82.77% to 96.05% for Balanites and Ziziphus, respectively, whereas the efficiency was 76.18 ± 1.39% and 80.93 ± 1.71%. The stimulated in vitro gastrointestinal test showed that encapsulation increased the bioavailability of the bioactive compounds. The total carotenoids were the most bioavailable compounds with 85.89 ± 0.06% for Ziziphus and 70.46 ± 1.10% for Balanites, followed by total flavonoids for Zizyphus with 63.27 ± 1.56%. Furthermore, regardless of species or wavelengths, the HPLC analysis resulted in the identification of 17 bioactive metabolites. The predominant one was epicatechin, whose level ranged from 231.52 ± 5.06 to 250.99 ± 3.72 mg/100 g DW in Ziziphus and 91.80 ± 3.85 to 116.40 ± 4.09 mg/100 g DW in Balanites. In estimating the enzyme inhibition and antioxidant power, both studied fruits showed antidiabetic, inflammatory, and antioxidant effects. These findings suggest that natural bioactive compounds are abundant in the fruits of Z. mauritiana and B. aegyptiaca and could be a valuable source for the food and pharmaceutical industries.

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The growth responses and antioxidant capabilities of melinjo (Gnetum gnemon L.) in different durations of drought stress

Cited by 11 publications

References 36 publications

Does Sodium Nitroprusside Alleviate Water Deficit Stress in Impatiens walleriana Shoots Grown In Vitro?

Does Sodium Nitroprusside Alleviate Water Deficit Stress in Impatiens walleriana Shoots Grown In Vitro?

Exopolysaccharides from Enterococcus faecium and Streptococcus thermophilus: Bioactivities, gut microbiome effects, and fermented milk rheology

Valorization of Bioactive Compounds from Two Underutilized Wild Fruits by Microencapsulation in Order to Formulate Value-Added Food Products

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