Production and Partial Purification of Amylase By Aspergillus niger Isolated from Cassava Peel
Bibliographic record
Abstract
Aspergillus niger strains 1, 2 and 3 isolated from cassava dumpsites were used for the production of amylase enzyme. The Aspergillus niger strains 1, 2 and 3 had diameter (mm) zone of clearance of 17.0, 23.0 and 8.0 respectively using Potato dextrose agar plates fortified with starch. Studies on the amylase enzyme activity (mg/ml) of Aspergillus niger strains 1 and 2 showed 19,340 and 16,510 respectively. These values were higher than the commercially available amylase enzyme that had an activity of 5,722.2. The protein (mg/ml) and specific activity (units/mg) for amylase from Aspergillus niger strain 1 was 28.39 and 681.23 while 21.76 and 758.73 from Aspergillus niger 2 respectively. Purification using ammonium sulphate (% w/v) at 60, 80 and 100 on amylase enzyme from Aspergillus niger strain 1 for enzyme activity, protein and specific activity was 44405.49, 17.01 and 2610.55, 28949.76, 23.62 and 1225.65, 36220.25, 16.67, and 2172.787 respectively. The microbial production of Amylase enzyme in Nigeria from Cassava peel will reduce cost of production, convert cassava peel from waste condition to wealth, and will boost economy through indigenous industrialization.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".