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Ammonium gluconate, an innovative seed-soaking agent from waste potatoes

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Fresh potatoes are one of the commodities with the highest wastage rates. A green, sustainable, and productive technology for the enzymatic generations of ammonium gluconate from potatoes was developed. The process comprised simultaneous alpha-amylase and glucoamylase treatment and fermentation to produce glucose. The final glucose yields after 40 h were around 90 g/L. The glucose was then converted to ammonium gluconate by fermentation for 36 h. Analysis of the ammonium gluconate showed a carbon content of 33.73%, a nitrogen content of 6.585%, and a sulfur content of 0.091%. The ammonium gluconate softened seed coats, increasing both water uptake and germination. It also enhanced the activity of alpha-amylase which loosened the seed endosperm cells and hydrolyzed their amyloplast. Ammonium gluconate also increased the number of dividing cells, thereby increasing the length of the apical meristematic zone, which, in turn, promoted the elongation and growth of roots. In conclusion, ammonium gluconate produced by waste potatoes can be used as a good seedsoaking agent or seed coating, which has the potential for widespread agricultural application.

Ammonium gluconateRiceSeed germinationWaste potatoesFOOD LOSSESASPERGILLUS-NIGERROOT ELONGATIONSUPPLY CHAINACIDFERMENTATIONSALINITYGERMINATIONMECHANISMSREDUCTION

Chen, Bingcui、Jin, Xianwei、Meng, Wu、Ding, Feng、Li, Piwu

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Qilu Univ Technol

2022

Scientia horticulturae

Scientia horticulturae

SCI
ISSN:0304-4238
年,卷(期):2022.293
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