scholarly journals RESÍDUOS ORGÂNICOS AGROINDUSTRIAIS INFLUENCIAM A PRODUÇÃO DE HÚMUS E MULTIPLICAÇÃO DE MINHOCAS

2021 ◽  
Vol 15 (3) ◽  
pp. 401-410
Author(s):  
Mayara Camila Soares Santos ◽  
Cleberton Correia Santos ◽  
Ivo De Sá Motta
Keyword(s):  
Eudrilus Eugeniae

Dentre as técnicas utilizadas no aproveitamento de resíduos agroindustriais, destaca-se a vermicompostagem, ou seja, o uso de minhocas na degradação desses resíduos pelo trato digestivo, transformando-os em húmus de minhoca. A minhoca Eudrilus eugeniae (gigante africana) é muito utilizada nesse processo de biotransformação e estabilização dessas materiais. Assim, objetivou-se com este trabalho conhecer a viabilidade do uso de resíduos agroindustriais na produção de húmus e multiplicação de minhocas. Os tratamentos foram constituídos por diferentes proporções de conteúdo ruminal (CR) e bagaço de cana (BC), sendo: (T 1 ) 100% CR; (T 2 ) 87,5% 12,5% CR + BC; ( T3 ) 75% CR + 25% BC; (T 4 ) 62,5% 37,5% CR + BC; (T5 ) 50% CR + 50% BC. Realizamos a inoculação das minhocas Eudrilus eugeniae , e decorridos 78 dias, quantificamos a massa de minhocas e de húmus. Uma combinação de 75% de conteúdo ruminal + 25% de bagaço de cana propicia melhores condições para multiplicação de minhocas Eudrilus eugineae. Quanto à produção de húmus, 100% do conteúdo ruminal possibilita maior produção do mesmo e essa decresce com a adição do bagaço de cana.

scholarly journals Purification and characterization of carboxymethylcellulase from Bacillus pumilus EWBCM1 isolated from earthworm gut (Eudrilus eugeniae)

2021 ◽  
Vol 33 (1) ◽  
pp. 101261
Author(s):  
Thiruvengadam Shankar ◽  
Subbiah Sankaralingam ◽  
Chellapandian Balachandran ◽  
Arunachalam Chinnathambi ◽  
Omaima Nasif ◽  
...  
Keyword(s):  
Bacillus Pumilus ◽  
Eudrilus Eugeniae ◽  
Purification And Characterization ◽  
Earthworm Gut

Enriched pressmud vermicompost production with green manure plants using Eudrilus eugeniae

2020 ◽  
Vol 299 ◽  
pp. 122578 ◽  
Author(s):  
Ramalingam Balachandar ◽  
Logalakshmanan Baskaran ◽  
Ananthanarayanan Yuvaraj ◽  
Ramasundaram Thangaraj ◽  
Ramasamy Subbaiya ◽  
...  
Keyword(s):  
Green Manure ◽  
Eudrilus Eugeniae

Earthworms as plug flow reactors: a first-order kinetic study on the gut of the vermicomposting earthworm Eudrilus eugeniae

2018 ◽  
Vol 25 (31) ◽  
pp. 31062-31070 ◽  
Author(s):  
Katheem Kiyasudeen ◽  
Mahamad Hakimi Ibrahim ◽  
Syahidah Akmal Muhammad ◽  
Sultan Ahmed Ismail ◽  
Fadzil Noor Gonawan ◽  
...  
Keyword(s):  
Kinetic Study ◽  
Plug Flow ◽  
Order Kinetic ◽  
Eudrilus Eugeniae ◽  
Flow Reactors ◽  
First Order

The biology and population dynamics of Eudrilus eugeniae (Kinberg) (Oligochaeta) in cattle waste solids

Pedobiologia ◽  
2001 ◽  
Vol 45 (4) ◽  
pp. 341-353 ◽  
Author(s):  
Jorge Dominguez ◽  
Clive A. Edwards ◽  
John Dominguez
Keyword(s):  
Population Dynamics ◽  
Eudrilus Eugeniae

scholarly journals Avaliação do deslocamento de minhocas (Eudrilus Eugeniae) submetidas a pulsos elétricos controlados

2005 ◽  
Vol 9 (3) ◽  
pp. 433-440 ◽  
Author(s):  
Delly Oliveira Filho ◽  
Isnard D. Ferraz ◽  
José H. Martins ◽  
Luiz C. dos Santos ◽  
Osvaldo P. Ribeiro Filho ◽  
...  
Keyword(s):  
Eudrilus Eugeniae

Realizou-se este trabalho com o objetivo de determinar, em laboratório, os índices de deslocamento e de separação de minhocas gigante africana (Eudrilus eugeniae) do húmus, e definir as características elétricas dos pulsos elétricos que permitam melhor eficiência na separação de minhocas em escala piloto. Os testes realizados apresentavam as seguintes características: (i) tensão de 100 a 500 V; (ii) patamar de pulso de 2, 3 e 4 ms; (iii) freqüência de 1 e 5 Hz; e (iv) tempo de exposição de 1, 2, 3 e 4 h. Verificou-se que as minhocas submetidas aos pulsos elétricos se deslocam, preferencialmente, no sentido do cátodo. Nas situações estudadas o maior valor de índice de deslocamento obtido foi de 78,18% e o índice de separação, de 62,37%. A utilização de pulsos elétricos controlados, para a separação de minhocas do húmus, gera um ganho médio, ao longo da vida útil estimada, de cerca de 26% de economia financeira.

scholarly journals The Utilization of Mushroom Waste Substrate in Producing Vermicompost: The Decomposer Capacity of Lumbricus rubellus, Eisenia fetida and Eudrilus eugeniae

2020 ◽  
Vol 23 (2) ◽  
pp. 99-104
Author(s):  
Agus Mulyadi Purnawanto ◽  
Yugi R. Ahadiyat ◽  
Achmad Iqbal ◽  
Keyword(s):  
Weight Loss ◽  
Moisture Content ◽  
Eisenia Fetida ◽  
Quality Standards ◽  
Lumbricus Rubellus ◽  
Eudrilus Eugeniae ◽  
Weight Number

AbstractThe objective of this study was to determine the capacity of Lumbricus rubellus, Eisenia fetida and Eudrilus eugeniae earthworms in vermicompost production utilizing mushroom waste substrate based on weight; number and weight loss of earthworms; temperature; pH; moisture content of media; and C/N ratio. The results showed that, by using 42 g of E. eugeniae, E. fetida and L. rubellus earthworms, there was an increase in weight of earthworms and vermicompost by more than 300% and 75%, respectively. In general, these three species of earthworms were able to produce vermicompost in compliance with quality standards, showing C/N ratio lower than 20.

scholarly journals Anti-coagulant Activity of Isolated and Partially Characterized Proteoglycans and Glycosaminoglycans from African Night Crawler (Eudrilus eugeniae Kinberg)

KIMIKA ◽  
2015 ◽  
Vol 26 (2) ◽  
pp. 31-38
Author(s):  
Mia Clare Marie L. Bercansil ◽  
Miko Lorenzo J. Belgado
Keyword(s):  
Hyaluronic Acid ◽  
Infrared Spectroscopy ◽  
Enzymatic Hydrolysis ◽  
Gel Filtration ◽  
Acetate Buffer ◽  
Eudrilus Eugeniae ◽  
Gel Filtration Chromatography ◽  
Molecular Weights ◽  
Coagulant Activity ◽  
Hydrolysis Of

Proteoglycans and glycosaminoglycans were isolated from African night crawler (Eudrilus eugeniae Kinberg) and partially characterized proteoglycans (3.04 % of lyophilized worm) were liberated from the defatted and depurinated worm samples by dissociative method using 4M urea in acetate buffer. Glycosaminoglycans (12.47% of proteoglycan extract) were extracted using enzymatic hydrolysis of the proteoglycan extract with papain. Gel filtration chromatography using Sepharose CL-4B was used to purify and estimate the molecular weights of the proteoglycan and glycosaminoglycan fractions. Three proteoglycan fractions PGF1, PGF2 and PGF3 with estimated molecular weigths 860 kDa, 181 kDa and 3 kDa, respectively were identified as monitored by the Bradford and modified carbazole assay. Two glycosaminoglycan fractions - GF1 (MW = 860 kDa) and GF2 (MW=140 kDa) were identified using the modified carbazole assay. Infrared spectroscopy of the GF1 and GF2 showed the possible identities of the fractions. GF1 may be a hyaluronic acid and GF2 is possibly chondroitin. Anti-coagulant assay for the extracts and fractions revealed that the glycosaminoglycan isolate has anti-coagulant activity but not the GF1 and GF2 fractions individually.

scholarly journals Association of Alcaligenes Faecalis Strain in Juvenile Earthworms, from Cocoons of Eudrilus Eugeniae

2019 ◽  
Vol 9 (2S2) ◽  
pp. 688-692
Keyword(s):  
16S Rrna ◽  
Gene Sequence ◽  
Agar Medium ◽  
Alcaligenes Faecalis ◽  
Rrna Gene ◽  
Eudrilus Eugeniae ◽  
Zone Of Inhibition ◽  
Chain Reaction ◽  
Nutrient Agar Medium ◽  
Polymerase Chain

Cocoons of earthworm Eudrilus eugeniae were collected from vermiculture bed and found that it had antibacterial activity. The size of zone of inhibition was directly proportional to the size of cocoons examined. Along with nutritious fluid and embryos, culturable bacterial community was found inside the cocoons. Bacterial colonies were isolated from the trails of newly hatched, juvenile worms in the nutrient agar medium and examined. Gram negative, rod shaped bacterium was found to be abundant in the trails of juvenile earthworms. Polymerase chain reaction was performed from this bacterium to amplify the gene of 16S rRNA and analyzed. Subsequent bi-directional DNA sequencing revealed that this abundant bacterium is highly related to 16S rRNA gene sequence of a strain, Alcaligenes faecalis. Based on available literature, we hypothesize that this bacterium could be symbiotically associated with cocoons of earthworms.

scholarly journals Assessment of sustainable vermiconversion of water hyacinth by Eudrilus eugeniae and Eisenia fetida

2013 ◽  
Vol 5 (2) ◽  
pp. 451-454
Author(s):  
N. Kannadasan ◽  
Nirmala Natarajan ◽  
N. Anbusaravanan ◽  
P. Sekar ◽  
R. Krishnamoorthy
Keyword(s):  
Water Hyacinth ◽  
Eisenia Fetida ◽  
Micrococcus Luteus ◽  
Maximum Growth ◽  
Garden Soil ◽  
Cow Dung ◽  
Aquatic Weed ◽  
Eudrilus Eugeniae ◽  
Toxic Heavy Metals ◽  
Eichornia Crassipes

The present work has assessed sustainable vermiconversion of aquatic weed water hyacinth (Eichornia crassipes). The garden soil, water hyacinth and cow dung were taken in the following the combinations of 1: 2 : 1, 2: 1: 1 and 1 : 1: 2. Two species of earthworms Eudrilus eugeniae and Eisenia fetida was used for the experiment. The total nitrogen (0.18% in control and 1.68% in earthworm treated) and phosphate (0.63 % in control and 1.64 % in earthworm treated) levels were increased and toxic heavy metals zinc (7.66 ppm in control and 2.58 ppm in earthworm treated) and copper (6.68 ppm in control and 1.15 ppm in earthworm treated) were significantly decreased. The earthworm enriches the compost with various nutrients for plant and microbial growth. Plant growth studies were conducted in all the combination of water hyacinth, maximum growth of root length (8.9cm and 7.2 in control) and shoot length (21.6cm and 16.2 in control) observed compare to control. Gut microbial analysis revealed that Bacillus cereus, Micrococcus luteus were predominantly present in the earthworm. The study recommended that the aquatic weed compost was suitable of agricultural usage.

scholarly journals Study of Changes in Physical Parameters of compost and vermicompost of Eucalyptus leaf litters

2018 ◽  
Vol 4 (1) ◽  
pp. 34-40
Author(s):  
Ritu Nagar ◽  
Anurag Titov ◽  
Praveesh Bhati
Keyword(s):  
Moisture Content ◽  
Leaf Litter ◽  
Initial Temperature ◽  
Cattle Dung ◽  
Physical Parameters ◽  
Physical Factors ◽  
Eudrilus Eugeniae ◽  
Minimum Level ◽  
Metabolic Heat ◽  
Later Phase

Vermicompost and compost of leaf litter of Eucalyptus was studied in plastic bins in duplicate sets with two different proportions (100 % and 50 %). For vermicompost experiments, epigeic earthworm species Eisenia foetida and Eudrilus eugeniae were employed at 10-10 numbers each per vermicompost bins. Cattle dung was taken as control. During the entire process physical factors viz. temperature, pH, moisture content and biomass were measured and compaired. The results were reveal that initial temperature was 35°C ± 2°C in both vermicompost and compost leaf litter and after several weeks, it was set at minimum level. In 50 % leaf litter temperature was 2-3°C higher than 100 % leaf litter. pH of both vermicompost and compost mixtures were acidic in beginning phase while set at alkaline at final stage. Vermicompost had lower pH than compost. Moisture content of leaf litter also decreased in initial phase due to generation of metabolic heat but at later phase it was increased due to decreasing of metabolic heat. More changed was seen in 100 % leaf litter followed by 50 % and then cattle dung. Biomass of leaf litter was more decreased in 100 % waste then 50 % and cattle dung.

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