Residue from Passion Fruit Processing Industry: Application of Mathematical Drying Models for Seeds
, Francisco de Assis Mendes 2, Manoel Tolentino Leite Filho 3, Rafaela Duarte Almeida 4, Anna Sylvia R. R. M. Cavalcanti 5 and Renata Duarte Almeida 6Round 1
Reviewer 1 Report
Comments and Suggestions for AuthorsThe manuscript titled " Residue from the Passion Fruit Processing Industry: Application of Mathematical Drying Models for Seeds” aims to study the drying kinetics of passion fruit seeds, using an experimental forced convection dryer at various temperatures and air velocities, and to analyze drying models involving novel concepts derived from Fick's equation; it found that the Cavalcanti Mata, Henderson & Pabis, and Page models modified by Cavalcanti Mata best fit the experimental data, highlighted significant findings on fatty acid composition in extracted oil, and detailed the nutritional characterization of the resulting flour. Please consider correcting the following points:.
Specific comments:
1. Please check the affiliations 5, 6, and 7 and ensure the appropriate affiliation format for the authors are used.
2. Line 19 – 21: The phrase "which are a byproduct of the industrial processing of passion fruit, with the potential to produce byproducts such as oil and flour" can be streamlined to avoid redundancy.
3. Please check references in the entire article. References should be numbered in order of appearance and indicated by a numeral or numerals in square brackets—e.g., [1] or [2,3], or [4–6].
4. Please avoid having too many paragraphs especially short sentence paragraphs e.g. sentences in line 61 – 72 can all be in one paragraph.
5. The introduction section provides valuable information about the growing of passion fruit in Brazil, highlighting its significance in terms of production and economic contribution. However, to further strengthen the justification for the study, a brief discussion on (1) the drying kinetic model is required, (2) why the choice of the models applied? (3) What is the basis for the selection of the drying temperature (4) What is the industrial significance of dried passion fruit seed flour etc.
6. In the description for “Material and Method”, it is more beneficial to mention the model of the machine or device and the steps taken to arrive at your report for each analysis rather than the place where the analysis took place. This will allow reproducibility of the study. For instance, line 118 – 120 “The drying process was conducted at the Drying Laboratory of the Academic Unit of Food Engineering, located in the Center for Natural Resources Technology at the Federal University of Campina Grande (UFCG)”.
7. Line 141 – 142: What does the author mean by “decreasing drying rate in spherical shape”? Please clarify.
8. Section 2.3: Please include the company information for the machine “Bovenau 30 ST hydraulic press, model P30000”. Also, at what temperature was the extraction performed? Temperature can significantly affect the efficiency and quality of the oil extraction.
9. Line 319: The “2% solution in dichloromethane”: More details on how this solution was prepared would be useful. Specifically, what was dissolved to make this 2% solution? or do you mean “2% solution of dichloromethane”?
10. Please ensure using the correct section numbers in section 2 and 3. Also please consider separating some of the results into different sections. For example.
3.0 Result and Discussion
3.1 Physical Dimension and Drying Kinetics
3.2 Mathematical Modeling
3.3 Effective Diffusivity and Activation Energy
3.4 Thermodynamic properties
3.5 Oils Extracted from Passion Fruit Seeds
11. Line 443 – 449: Authors made refence to previous works without citing the reference. Please correct it.
12. Please check all tables and use “.” where necessary. Avoid using “,” instead of a “.”.
13. Line 494 – 507: Please consider putting all sentences into same paragraph.
14. Conclusion: this section is usually a single paragraph and please remove redundant phrases to streamline the content.
15. Line 761 – 762: The sentence is incomplete.
16. Please work on the entire manuscript to remove redundant phrases.
The quality of English in the text is generally good, but it could benefit from some refinement to eliminate redundant phrases and improve clarity.
Author Response
Dear Reviewer,
Thank you for your invaluable contributions to our article, all of which were very pertinent. We hope we have answered all your questions and suggestions satisfactorily.
Sincerely,The Authors
Author Response File: 
Author Response.pdf
Reviewer 2 Report
Comments and Suggestions for AuthorsThe subject is exciting, and the paper has all the needed sections. The experimental design is adequate and proper. The references cited in this manuscript are appropriate and relevant to this research. Quality of Presentation and Scientific Soundness are average levels. On the other hand, some points should be taken into account.
What is the reason for selecting temperatures of 40, 50, 60, and 70 °C and a drying air velocity of 1.5 m s-1? It was not explained in the manuscript.
The figures of the samples should be given.
The lines of the table 4 should be reformed.
The conclusion section should be rewritten according to the journal's rules. The future perspective should be written in the conclusion section.
The references in the manuscript should be reformed according to journal rules.
In line 357, the equation number should be for that equation.
In line 110, 200 mg L-1 should be rewritten.
Author Response
Dear Reviewer,
We appreciate your invaluable contributions to our article, all of which are very pertinent. We hope we have satisfactorily addressed all the questions and suggestions. The corrections have been incorporated into the text and can be seen in the attached file.
Sincerely,
The Authors.
Author Response File: Author Response.pdf
Round 2
Reviewer 1 Report
Comments and Suggestions for AuthorsThe authors have incorporated all the mentioned corrections into the revised article.
