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Peer-Review Record

Solubility of Rosmarinic Acid in Supercritical Carbon Dioxide Extraction from Orthosiphon stamineus Leaves

ChemEngineering 2022, 6(4), 59; https://doi.org/10.3390/chemengineering6040059
by Ahmad Hazim Abdul Aziz 1,*, Nor Faadila Mohd Idrus 2, Nicky Rahmana Putra 2, Mohd Azrie Awang 1, Zuhaili Idham 2, Hasmadi Mamat 1 and Mohd Azizi Che Yunus 2
Reviewer 1: Anonymous
Reviewer 2: Anonymous
ChemEngineering 2022, 6(4), 59; https://doi.org/10.3390/chemengineering6040059
Submission received: 28 June 2022 / Revised: 15 July 2022 / Accepted: 19 July 2022 / Published: 1 August 2022

Round 1

Reviewer 1 Report

This work focused on the solubility of rosmarinic acid in ethanol-assisted supercritical carbon dioxide extraction. The detailed parameters were studied and the results were presented. Thus, this work is suitable for publishment after minor revisions. The detailed comments were as follows:

1. The Figures in this work should be further standardized.

2. The novelty of this work should be further clarified. 

Author Response

Please see the attachment.

Author Response File: Author Response.pdf

Reviewer 2 Report

I have no major remarks to the manuscript “Solubility of rosmarinic acid in ethanol-assisted supercritical carbon dioxide extraction from Orthosiphon stamineus leaves”. The studies are well planned and the results adequately presented.

Proposes minor improvements:

-Table 1 - standardize units, K or °C

- page 4, 5 - R2, CO2 – correct

- Table 2 – density – values ​​- maybe one decimal place is enough

- Table 2 - how many test repetitions were made, what is the precision of the results (experimental RA solubility)?

Author Response

Please see the attachment.

Author Response File: Author Response.pdf

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