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| Akpenpuun, Timothy Denen; Akinyemi, Banjo; Olawale, Olamide; Aladegboye, Oluwasegun Joshua; Adesina, Olalere Israel. |
| This study looks at the effect of cement replacement with locust bean pod ash (LBPA) as a supplementary cementitious material on compressive strength of mortars. The fresh properties (workability, initial and final setting times), compressive strength at 7, 14, 21 and 28 days and microstructural analysis (SEM, EDS and XRD) were evaluated. LBPA were considered at replacement levels of 0, 10, 15, 20 and 30% of cement mass for preparation of the mortar samples. Workability of the cement mortars reduced as the content of LBPA increases while initial and final setting times increased in relation to increase in LBPA content in the matrix. An increase of about 79% in compressive strength at 7 days, 100% at 14 days, 147% at 21 days and 136% at 28 days were... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Farm Structures and Environment compressive; Strength; Agro-waste; Pod; Ash. |
| Ano: 2019 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5525 |
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| Dikshit,Rashmi; Tallapragada,Padmavathi. |
| The aim of the present work was to study the production and characterization of β-glucosidase from Monascus sanguineus. Agro-waste residues were screened to obtain the maximum yield of enzyme. Jack fruit seed was the best substrate for enzyme production. Studies on the optimization of pH and temperature showed acidic pH favorable for enzymatic activity, whereas the optimum temperature was 60°C. Enzyme kinetics studies with different concentration of pNPG showed the calculated value of Km approximately 0.89 mM with the non-linear regression and 0.98 mM with the linear regression techniques. The enzyme was predominantly inhibited by KCl (69.8%) and moderately inhibited by CaCl2(14.8%). Studies on the sensitivity for glucose showed that after 100 mM... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Zymography; Agro-waste; Kinetics; Monascus sanguineus; PNPG. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132015000200185 |
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