Author(s):
Elmin Rahic, Nicholas Cassady, Zhiyou Wen, Kurt Rosentrater
Abstract:
Laccase fermentation was conducted by cultivating white-rot fungi (Pleurotus ostreatus) on prairie biomass (growth phase), followed by the induction of laccase using bio-oil aqueous phase (induction phase). This fermentation process was modeled for techno-economic analysis based on experimental data. The experimental data consisted of two parts: 1) optimizing nitrogen concentration for the growth phase, and 2) modeling laccase production and induction phase time using response surface methodology by varying substrate bed depth, substrate to inoculum ratio, and growth phase length.
Funder:
USDA NIFA
Award Title:
Consortium for Cultivating Human And Naturally reGenerative Enterprises: Grass2Gas
Award Number:
2020-68012-31824
Keywords:
Pleurotus ostreatus, bio-oil aqueous phase, biochar, corn steep, laccase, prairie biomass
Project (Abbreviated name):
G2G_Rosentrater_laccase_TEA_experimental_data
Team:
Grass2Gas
Families:
Pleurotaceae
Species:
Pleurotus ostreatus
Data Table Column Names and Descriptions
| Table name | Column name | Data type | Units | Column description |
|---|---|---|---|---|
| data.dataset_fungal_growth_by_corn_steep_concentration | average mass g | float | gram | Mean fungal biomass over three trials. |
| data.dataset_fungal_growth_by_corn_steep_concentration | corn steep concentration g per l | float | gramPerLiter | Mass of corn steep solids mixed with media, expressed in grams per liter. |
| data.dataset_fungal_growth_by_corn_steep_concentration | dataset fungal growth by corn steep concentration pkey | integer | dimensionless | A unique primary key for this table. |
| data.dataset_fungal_growth_by_corn_steep_concentration | fungal growth mass g | float | gram | Mycelial biomass was harvested by scraping and quantifying the biomass gravimetrically. Expressed in grams. |
| data.dataset_fungal_growth_by_corn_steep_concentration | standard deviation g | float | gram | Standard deviation of the mean fungal biomass over three trials. |
| data.dataset_fungal_growth_by_nitrogen_source | dataset fungal growth by nitrogen source pkey | integer | dimensionless | A unique primary key for this table. |
| data.dataset_fungal_growth_by_nitrogen_source | fungal biomass g | float | gram | Mycelial biomass was harvested by scraping and quantifying the biomass gravimetrically. Expressed in grams. |
| data.dataset_fungal_growth_by_nitrogen_source | nutrient | string | NA | The nitrogen source tested. |
| data.dataset_model_result_table | coefficient | string | NA | The variable used to express this parameter in the central composite design model. |
| data.dataset_model_result_table | dataset model result table pkey | integer | dimensionless | A unique primary key for this table. |
| data.dataset_model_result_table | estimate | float | dimensionless | The parameter estimate produced by the model. |
| data.dataset_model_result_table | f value | float | dimensionless | The F statistic reported by the model. |
| data.dataset_model_result_table | p value | string | NA | The p value reported by the model. |
| data.dataset_model_result_table | variable | string | NA | The experimental condition, its transformation (if any), and interaction with other variables. |
| data.laccase_by_bed_depth_s_i_ratio_and_time_raw | absorbance after 0 seconds | float | NA | Spectrophotometer absorbance at the indicated reaction time. Absorbance through time was used to calculate laccase yield using the equation provided in the Analysis subsection of Methods. |
| data.laccase_by_bed_depth_s_i_ratio_and_time_raw | absorbance after 120 seconds | float | NA | Spectrophotometer absorbance at the indicated reaction time. Absorbance through time was used to calculate laccase yield using the equation provided in the Analysis subsection of Methods. |
| data.laccase_by_bed_depth_s_i_ratio_and_time_raw | absorbance after 150 seconds | float | NA | Spectrophotometer absorbance at the indicated reaction time. Absorbance through time was used to calculate laccase yield using the equation provided in the Analysis subsection of Methods. |
| data.laccase_by_bed_depth_s_i_ratio_and_time_raw | absorbance after 180 seconds | float | NA | Spectrophotometer absorbance at the indicated reaction time. Absorbance through time was used to calculate laccase yield using the equation provided in the Analysis subsection of Methods. |
| data.laccase_by_bed_depth_s_i_ratio_and_time_raw | absorbance after 30 seconds | float | NA | Spectrophotometer absorbance at the indicated reaction time. Absorbance through time was used to calculate laccase yield using the equation provided in the Analysis subsection of Methods. |
| data.laccase_by_bed_depth_s_i_ratio_and_time_raw | absorbance after 60 seconds | float | NA | Spectrophotometer absorbance at the indicated reaction time. Absorbance through time was used to calculate laccase yield using the equation provided in the Analysis subsection of Methods. |
| data.laccase_by_bed_depth_s_i_ratio_and_time_raw | absorbance after 90 seconds | float | NA | Spectrophotometer absorbance at the indicated reaction time. Absorbance through time was used to calculate laccase yield using the equation provided in the Analysis subsection of Methods. |
| data.laccase_by_bed_depth_s_i_ratio_and_time_raw | culture time hours | float | hour | Time since induction with bio-oil aqueous phase, expressed in hours. |
| data.laccase_by_bed_depth_s_i_ratio_and_time_raw | dilution factor | integer | number | The number of times the sample was diluted before testing to keep absorbances within the range that could be read by the spectrophotometer. |
| data.laccase_by_bed_depth_s_i_ratio_and_time_raw | id number | integer | dimensionless | The assigned experimental ID. Each combination of substrate bed depth, substrate to inoculum ratio, and pre-induction growth time was assigned a unique ID. |
| data.laccase_by_bed_depth_s_i_ratio_and_time_raw | laccase activity units per g | float | NA | The calculated laccase activity expressed in units per gram prairie biomass. Activity was calculated using the formula presented in the methods section. |
| data.laccase_by_bed_depth_s_i_ratio_and_time_raw | laccase activity units per g mean | float | NA | The calculated laccase activity averaged over two replicates, expressed in units per gram prairie biomass. Activity was calculated using the formula presented in the methods section. |
| data.laccase_by_bed_depth_s_i_ratio_and_time_raw | laccase activity units per ml | float | NA | The calculated laccase activity expressed in units per milliliter SUBSTANCE. Activity was calculated using the formula presented in the methods section. |
| data.laccase_by_bed_depth_s_i_ratio_and_time_raw | laccase by bed depth s i ratio and time raw pkey | integer | dimensionless | A unique primary key for this table. |
| data.laccase_by_bed_depth_s_i_ratio_and_time_raw | molar extinction coefficient | float | NA | A measurement of how strongly a substance absorbs light, expressed as M-1cm-1. Used to estimate the rate of color change (i.e. absorbance) to estimate laccase activity. |
| data.laccase_by_bed_depth_s_i_ratio_and_time_raw | slope absorbance per minute | float | NA | The slope of the best fit line drawn through absorbance by reaction time. I.e., mean change in absorbance through time. |
| data.laccase_by_bed_depth_s_i_ratio_and_time_raw | slope r squared | float | NA | The proportion of the variation in the absorbances that was predictable from the reaction time along the best fit line. In other words, how well the slope fit the data. |
| data.laccase_by_bed_depth_s_i_ratio_and_time_raw | substrate bed depth cm | float | centimeter | The depth of the prairie biomass during the growth phase expressed in centimeters. |
| data.laccase_by_bed_depth_s_i_ratio_and_time_raw | substrate inoculum ratio g per g | float | gramPerGram | The ratio of prairie biomass substrate to P. ostreatus spawn used, expressed in grams per gram. |
| data.laccase_by_bed_depth_s_i_ratio_and_time_raw | time days | float | NA | The duration of the pre-induction culture phase expressed in days. |
| data.laccase_by_bed_depth_s_i_ratio_and_time_raw | total volume to sample volume ratio | float | dimensionless | Ratio of total volume (Vt) to sample volume (Vs) during the laccase activity assay. Used to convert the volume of laccase input for the assay (20-40 uL) to 1 mL. |