Changes in phenol metabolism of minimally processed baby cassava under different temperatures: An alternative to commercialization

This study proposes to relate the increase in phosphorus (P) supply in the soil, via phosphate fertilization, to oxidative damage and protection, phenylpropanoid metabolism, and enzymatic browning in minimally processed cassava. The roots were grown with 0, 60, and 120 kg ha–1 P2O5. The roots were harvested, and the yield and P content in the root, stem, and leaves were quantified. The roots were minimally processed and stored for 12 days at 5 °C. The higher supply of P in the soil increased the P content of roots and stems but not the agro-industrial yields. Roots grown at 120 kg ha–1 P2O5 showed higher detection of hydrogen peroxide, which was accompanied by increased phenolic compounds, soluble quinones, and antioxidant capacity and increased activities of the enzymes superoxide dismutase, catalase, ascorbate peroxidase, polyphenol oxidase, and peroxidase. The present study thus demonstrates the role of phosphorus application, induction of the synthesis of phenolic compounds, and quality of fresh-cut cassava.

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Humic and fulvic acid influence the morphophysiological and biochemical properties of cowpea (Vigna unguiculata) under water deficit

de Jesus,

Pierre de Andrada,

dos Santos Silva

et al. 2023

Crop & Pasture Science

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Context Water deficit is a limiting factor in cowpea (Vigna unguiculata) performance. Humic and fulvic acids are organic fertilisers that increase plant productivity and appear as a viable alternative to improve cowpea productivity under water deficit. Aim We evaluated the efficiency of humic and fulvic acid on the morphophysiological and biochemical properties of cowpea subjected to water deficit. Methods The experiment was conducted in a greenhouse. A completely randomised design was adopted in a 5 × 2 factorial scheme with four replications, with five doses of humic and fulvic acid, 0, 4, 8, 12 and 16 mL/L applied to plants irrigated at 100% and 25% of field capacity. Stomatal conductance (gs), water potential (Pw), plant height (H), stem diameter (SD), number of leaves (NL), number of root nodules (NR), fresh and dry weight of the aerial (FMA and DMA) and root (FMR and DMR), total soluble proteins (SP) and total phenolic compounds (PC). Key results Doses of 8 and 12 mL/L increased gs (100–200 mmol m2 s−1), reduced Pw (−0.9 MPa) and NR, increased FMR and DMR (20 and 10 g), SP (8–9 g) in stressed and non-stressed individuals. Conclusions Intermediate doses of humic and fulvic acid (12 mL/L) are recommended for cowpea production in dry regions. Implications Humic and fulvic acid together are viable alternatives for optimising agricultural production and decision making in semi-arid regions.

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Changes in phenol metabolism of minimally processed baby cassava under different temperatures: An alternative to commercialization

Cited by 6 publications

References 22 publications

Darkening, damage and oxidative protection are stimulated in tissues closer to the yam cut, attenuated or not by the environment

Darkening, damage and oxidative protection are stimulated in tissues closer to the yam cut, attenuated or not by the environment

Phosphate Fertilization as a Modulator of Enzymatic Browning in Minimally Processed Cassava

Humic and fulvic acid influence the morphophysiological and biochemical properties of cowpea (Vigna unguiculata) under water deficit

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