A Systematic Review on Waste as Sustainable Feedstock for Bioactive Molecules—Extraction as Isolation Technology
Round 1
Reviewer 1 Report
Comments:
The submitted manuscript entitled “A systematic review on waste as sustainable feedstocks for bio-active molecules – Extraction as isolation technology” reviewed the sustainable development of feedstocks. This paper is well-written and of interest to the readers of Processes. I would recommend accepting the manuscript after the following comments are addressed.
The format of all references has to be consistent with the journal request. Please double-check and correct them throughout the whole session. I have some pieces highlighted in the attached pdf.
In addition, there are some other highlights in the manuscript that the authors have to check. “feedstocks” for example.
There are two Table A2 in the manuscript. Please make the second Table A2 as Table A3 and correct the correlated pieces in the manuscript.
Comments for author File: 
Comments.pdf
Author Response
Dear reviewer,
thank you very much for your comments. They improved the article.
Please see the attachment for changes.
- The format of all references has been edited and abbreviated acc. to LTWA
- The table definition and formate mistakes have been corrected
- Highlighted mistakes have been corrected
- Some spelling mistakes have been corrected
- Acc. "feedstock": In the title, waste is used as a collective term for all residual materials, therefore the singluar is perceived as correct. In some cases the singular was changed to the plural.
Best regards
Author Response File: 
Author Response.docx
Reviewer 2 Report
This review article by Kienberger and co-workers will be a valuable addition to the literature, covering the theme of proper use of afro-industrial waste, a sustainable feedstock for bio-active molecules. The introduction does an excellent job of acknowledging and reviewing the challenges and opportunities in this area. While pointing out that the current review article covers a new theme of agro-food industrial waste and its classification, extraction methods, and isolations parameter for the bioactive molecules. The overall organization into sections 1, 2, 3-5 works well. They do a thorough job including key papers from this area while discussing its advantages and possibilities of it. A very useful aspect of this review is that the authors describe major challenges for the extraction of bioactive molecules from the waste solid feedstock and the use of alternative solvents that are more eco-friendly and characterization detection and follow on, which will be interesting for the readers. So it is recommended for publication.
Author Response
Dear reviewer,
thank you for your comment.
Please find attached the paper with minor corrections.
- Spelling mistakes have been corrected
- Table format mistakes have been corrected
- Literature format has been corrected acc. LTWA
Best regards
Author Response File: Author Response.docx
