Changes in fibrolytic enzyme activity during vermicomposting of maize stover by an anecic earthworm Amynthas hupeiensis

Chen, Yuxiang; Zhang, Quanguo; Zhang, Yufen; Chen, Jing; Zhang, Dongguang; Tong, Jin

doi:10.1016/j.polymdegradstab.2015.06.018

Cited by 14 publications

(7 citation statements)

References 59 publications

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“…Final values for the C/N relationship in the four mixes were 12.14 (CR), 9.79 (M1), 15.81 (M2) and 8.28 (M3). These values resulted under 20, as per local norm for earthworm compost [54], they also supported what has been reported by different authors [30,32,33,53,56,61,64,[68][69][70][71]. Iglesias and Pérez [72] concluded a C/N relation beneath 20 can be considered a necessary condition for compost maturity, but values under 12 are more adequate to guarantee the degree of maturity.…”

Section: C/n Relationsupporting

confidence: 85%

Pre-Composting and Vermicomposting of Pineapple (Ananas Comosus) and Vegetable Waste

et al. 2019

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In the last few years, pineapple (Ananas comosus) has grown to be considered one of the most important fruits worldwide due to its high production and consumption. However, inadequate disposal of the waste it generates, which represents up to 67% of its total weight, can have environmental impacts. Therefore, this study focuses on the degradation of organic waste produced in the industrialized processing of pineapple waste (rinds, crowns and cores), which undergo a process of vermicomposting at a laboratory level. The methodology used included the pre-composting process and vermicomposting through Californian red worms using mixes tested in three different proportions of pineapple waste (PR) and load material (LM) made up of vegetable waste and eggshells. Testing revealed that the pre-composting process for this waste was feasible as a first stage of the degradation process; the characteristics of the pre-composted material allowed a favorable adaptation for both the worms and general degradation. It also showed efficiencies in the removal of organic carbon between 36.40% and 45.78%. Results also showed the total nitrogen content remained between 1.2% and 2.2% and the carbon/nitrogen relation (C/N) had values under 20 as required for high-quality vermicompost.

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Section: C/n Relationsupporting

confidence: 85%

Pre-Composting and Vermicomposting of Pineapple (Ananas Comosus) and Vegetable Waste

et al. 2019

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Section: Total Nitrogensupporting

confidence: 77%

“…Figure 11 shows TN behavior during vermicomposting. The initial values for the four mixtures CR, M1, M2, M3 were 1.32%, 1.28%, 1.31% and 1.31% respectively, similar to the 1.28% reported using vegetable waste and cow dung [53] and to 1.18-1.46% with maize stover [12,13]. Starting at the next few weeks, TN values increased due to organic carbon loss due to the use of substrates and metabolic activities of microorganisms and earthworms, the latter causing an addition of nitrogen in the form of mucus, nitrogenous excretory substances, body fluids, growth-stimulating hormones, and enzymes [66].…”

Section: Total Nitrogensupporting

confidence: 73%

“…A decrease in C/N ratio values was observed during the experiment as a result of carbon loss in the form of CO2 due to microbial respiration and the addition of biological residue rich in nitrogen produced by earthworms [66,69]. This decrease in C/N ratio has been reported in research using similar substrates such as maize stover and chicken droppings [12] and wheat straw [14]. Final values for CR, M1, M2 and M3 were 19.03, 18.84, These values are similar to initial C/N ratios of 34.32 and 35.01 in vermicomposting processes using maize stover and chicken droppings [13].…”

Section: C/n Ratiosupporting

confidence: 63%

“…Vermicomposting studies have shown favorable results for obtaining soil improver [11]. Chen et al performed an experiment with maize stover and chicken droppings as a substrate using Amynthas hupeiensis worms and a pre-composting phase spanning 15 days, concluding that earthworms could accelerate maize stover stabilization by activating lignocellulose-degrading microbes [12]. Chen et al, in a similar experiment, used maize stover mixed with chicken droppings, applying a prior pre-composting process of the substrate for 15 days to prevent any damage to the worms when temperatures went above 35 • C [13].…”

Section: Introductionmentioning

confidence: 99%

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Vermicomposting: A Valorization Alternative for Corn Cob Waste

et al. 2021

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As vermicomposting has become a viable alternative for the valorization of organic waste; the objectives of this research were to (1) assess the feasibility of said process for corn cob waste (corn cobs and corn husks) and (2) evaluate the operation conditions for the biodegradation of different mixtures with load material (LM). LM did not include animal excreta as a nitrogen source, a practice widely used in a range of studies. The experiment consisted of an initial phase of pre-composting in order to obtain a partially stabilized substrate. Subsequently, four separate mixtures were made consisting of corn cob waste mixed with consistent load material (LM) containing vegetable waste and eggshells (CR, M1, M2, M3) to obtain a balance substrate able to facilitate degradation using Eisenia fetida earthworms. The following parameters were analyzed during the control process: temperature, pH, humidity, organic material (OM), total organic carbon (TOC), total nitrogen (TN) and carbon/nitrogen (C/N) ratio. The analysis of the final values of the stabilized mixtures showed that vermicomposting is indeed a feasible alternative for the degradation of corn cob waste for use as a soil improver.

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Comparative study of vermicomposting of garden waste and cow dung using Eisenia fetida

Yang²,

Gao³

et al. 2020

Environ Sci Pollut Res

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Changes in fibrolytic enzyme activity during vermicomposting of maize stover by an anecic earthworm Amynthas hupeiensis

Cited by 14 publications

References 59 publications

Pre-Composting and Vermicomposting of Pineapple (Ananas Comosus) and Vegetable Waste

Pre-Composting and Vermicomposting of Pineapple (Ananas Comosus) and Vegetable Waste

Vermicomposting: A Valorization Alternative for Corn Cob Waste

Comparative study of vermicomposting of garden waste and cow dung using Eisenia fetida

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