Abstract
This study combines artificial neural network (ANN) with a novel metaheuristic technique, satin bowerbird optimizer (SBO) for predicting oil, and pectin yield from watermelon rind. The experimental design was based on two-level factors, drying temperature (°C) and heating time (hours) for oil yield (%) and three-level factors, drying temperature (°C), extraction time (min), and pH for pectin yield (%) using response surface methodology (RSM). The RSM and SBO optimization resulted oil yield of 17.7–26.6% at conditions of drying temperature (90–100°C), and heating time (8.7–9 h), while pectin yield is between 21 and 37.6% at extraction temperature (80–100), extraction time (46.3–60 min), and pH (1–3). However, ANN predicted more accurately than the RSM model, with a lower percentage relative error. It was observed that pH and extraction time are pertinent process parameters for predicting pectin yield. Similarly, drying temperature is significant for oil extraction from watermelon.
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All data generated or analyzed during this study are included in this article and its additional files. The experimental values of response surface methodology (RSM) design as well as the artificial neural networks (ANN) data used are contained in an Excel File. Requests for material should be made to the corresponding author.
Abbreviations
- W:
-
weight of sample (g)
- P:
-
amount of dry pectin (g)
- RSM:
-
response surface optimization
- ANN:
-
artificial neural network
- SBO:
-
satin bower optimizer
- SBBOA:
-
satin bower bird optimization algorithm
- RMSE:
-
root mean square error
- MAPE:
-
mean absolute percent error
- MSE:
-
mean square error
- CCRD:
-
central composite rotatable design
- 2FI:
-
two factorial interaction
- k :
-
number of independent variables
- h :
-
layer
- out :
-
output
- i :
-
initial
- 1 :
-
empty flask
- 2 :
-
flask and extracted oil
- n:
-
number of repetition of experiments
- V:
-
vector network input
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Olatunji, O.M., Itam, D.H., Akpan, G.E. et al. Predictive Modeling Coupled with Multiple Optimization Techniques for Assessing the Effect of Various Process Parameters on Oil and Pectin Extraction from Watermelon Rind. Process Integr Optim Sustain 6, 765–779 (2022). https://doi.org/10.1007/s41660-022-00248-0
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DOI: https://doi.org/10.1007/s41660-022-00248-0