Formulate a compost mixture of at consisting of least three ingredients using the Cornell Composting Spreadsheet that will satisfy the range of percent moisture content from 50-60% and the range of C:N ratio from 25 to 35. A composting bioreactor has a total capacity of 500 kg. The total weight of the mixture ranges from 400-500 kg. Example: Ingredient Laying hens manure Leaves, Loose and dry Corn cobs Water % Moisture 69.0 15.0 15.0 100.0 % Carbon 48.0 48.6 58.8 0.0 % Nitrogen 8.0 0.9 0.6 0.0 Total Mass (lbs.) 100 65 150 150 465
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TOPIC: SIMULTANEOUS SOLUTIONS OF PERCENT MOISTURE AND CARBON/NITROGEN RATIO
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- Compute the cfu/g (lactic acid bacteria and coliforms) of burong mustasa samples given the following values below. Show your solution. 1st Sampling 2nd Sampling Media 10-2 10-3 10-4 10-2 10-3 10-4 TNTC. 252, 248, VRBA 28, 22, 31 26, 33 0, 0 0, 0 TNTC 232 0, 0 TNTC, TNTC TNTC, TNTC MRS 38, 42 0,0 152, 132 Volume plated: 0.1mlTwo microorganisms that use naphthalene as a food source have the same Umax but different Ks values for naphthalene. If both types of microorganisms are inoculated at the same cell density into a liquid culture containing naphthalene as the sole carbon source (i.e. the only food source), which microorganism will outcompete the other: the one with the higher Ks or the one with the lower Ks. Why?.Draw a Problem tree and a Solution tree for food contamination. Submit a LFA Matrix with this Overall Objective this problem in light of your expertise
- You are required to culture and identified yogurt starter cultures, Lactobacillus bulgaricus and Streptococcus thermophilus from a diluted yogurt sample (1ml of yogurt was dissolved in 9ml of peptone water) and observed the growth rates of Streptococcus thermophilus under varying conditions. The standard media accepted by the International Dairy Federation of the yogurt species, L. bulgaricus and S. thermophilus are MRS and M17 agar, respectively. You are also required to carry out different staining and biochemical techniques to identify different medically important bacterial species apart from yogurt cultures. Produce a report that includes; Description of how you have carried out aseptic techniques to cultivate these microorganisms to obtain pure cultures of bulgaricus and S. thermophilus from the mixed population (explain the principles behind each aseptic techniques used) and confirmation of these bacterial species by performing Gram’s staining. Description of how you have…Which of the following statements about the BOD test is FALSE? BOD test is a simple and practical indicator of the total organic content that is available to organisms plus any chemicals that spontaneously react with oxygen. BOD test measures the oxygen consumed by microorganisms as they break down organic material The standard test for BOD is the five-day (BOD5) test carried out in the dark at 20 °C There is an indirect correlation between the BOD5 value and the level of organic pollutants.Please describe in detail what would be a suitable procedure should you break anErlenmeyer flask containing 50 mL of a biosafety level 2 microorganism inside amicrobiological safety cabinet.
- Which one of the following statements about liquid media is false Select one: a-is prepared without add agar b-is available for use in petri dish . c-is sometimes referred as nutrient broth d-bacteria grow uniformly producing general turbidity%OM pH EC Ca2+ Mg2+ K+ Na+ Al3+ H+ % dS/m cmolc/kg soil cmolc/kg soil cmolc/kg soil cmolc/kg soil cmolc/kg soil cmolc/kg soil 2.7% 7.6 4.5 19 13 10 3 1 4 Is this soil affected? If so, what type? - saline - sodic - not salt affected - saline-sodicYou were assigned to investigate a poor production problem in one of the aquaculture site of thecompany that you are working. The overall fish production is not making any profit. You made aninvestigation on every part of the operation and appears to be normal and standard protocols had beenfollowed. You ordered a feed analysis and the data is presented below in terms of essential amino acidprofile of the diet: 1. Based on this dietary profile, describe the possible disease that could happen to the fish stockand elucidate the signs of this disease.2. Also discuss how this disease could cause losses in production operation.3. Design and describe a solution to resolve this production problem.
- 1.1 Microbes in the soil could be beneficial to plants and one way to evaluate this is by determining the R/S ratio. Define the R/S ratio. 1.2 Both rhizospheric and root-free soils were collected from five (5) plants before (BT) and after (AT) treatment. Using the microbial biomass that appear in Table 1, the R/S ratios before (BT) and after (AT) can be determined. Use these values to determine the respective R/S ratios. Kindly show all workings. Microbial population Before Treatment (BT) Plants R/S Microbial population After Treatment (AT) R/S ratio ratio (BT) (AT) Rhizospheric Non- soil (CFU) Rhizospheric Non- rhizospheric soil (CFU) soil (CFU) rhizospheric soil (CFU) Typha sp. 764 168 988 186 Pistia sp. 286 86 386 112 Salvinia 397 132 528 166 sp. Lemna sp. 274 121 406 152 Eichhornia 443 140 648 196 sp.D, Inc., uses three departments to produce a detergent. The Finishing Department is the third and last step before the product is transferred to storage. All materials needed to give the detergent its final composition are added at the beginning of the process in the Finishing Department. The company uses FIFO costing. The following data for the Finishing Department for October have been made available: Production data: In process, October 1 (labor and factory overhead, 75% complete) 10,000 litres Transferred in from preceding department 40,000 litres Finished and transferred to storage 35,000 litres In process, October 31 (labor and factory overhead, 50% complete)15,000 litres Additional data: Work-in-process inventory, October 1: Cost from preceding department $38,000Cost from this department: 21,500 Materials 39,000 Labor 42,000 Factory overhead $140,500 Transferred in during October $140,500Cost added in this department: Materials $70,000Labor 162,500Factory…Create a graph of this spectrophotometric data (using Excel or the graph paper below), labeling the four stages of the growth curve- lag, log (exponential), stationary, death. Be sure to label your axes properly and give your graph a title Time Culture Sampled % Absorbance 0 min 5% 30min 7% 60min 9% 90min 15% 120min 25% 150min 37% 180min 49% 210min 50% 240min 49% 270min…