Lignocellulosic Biorefinery Technologies: A Perception into Recent Advances in Biomass Fractionation, Biorefineries, Economic Hurdles and Market Outlook
, Kavitha S 3, Saloni Sachdeva 1, Shivani Thakur 1, Adish Kumar S 3 and Rajesh Banu J 4,*
Shuai Zhao
Round 1
Reviewer 1 Report
This review summarizes the process of lignocellulosic biomass (LCB)-based biorefinery, the limitations and advantages in LCB bioconversion to biofuel and biochemicals, which will be helpful for researchers with biorefinery and potentially be able to anticipate future environmental and economic implications during the scaling up process. There are some questions that I think help improve this manuscript.
1. Figure 1a and 2b should be connected together or separated as individual figures. In the text for Fig. 1a, LCB is described, while Fig. 1a seems to talk about glycerol conversion, which is confused. In Fig. 1b, it is better to integrative pretreatment of LCB with conversion. In addition, simple description in Figure 1 legend should be addressed.
2. In the Monomers column of Table 1, what the text in the brackets means? For example, lactic acid and glycolic acid are not monosaccharide.
3. In Table 1, the sequential application of acid-alkaline treatment is not found.
4. Some language expressions need to be improved.
Author Response
Dear Reviewer,
Thanks for your comments and suggestion. Please find attached the responses to comments
Author Response File: 
Author Response.pdf
Reviewer 2 Report
-Page 1 Line 30-32 Introduction “please add more specific concern and importance for this by adding more detail about SDG, COP26, COP27, or circular economy, please see some example at http://ojs.kmutnb.ac.th/index.php/ijst/article/view/5842/pdf_364”
-Page 1 Line 41 biofuels and biochemicals “also , other products from lignocellulose biorefinery could be mentioned for example platform chemicals, food additives, biopolymers, please see some example reads http://ojs.kmutnb.ac.th/index.php/ijst/article/view/2744/2082, http://ojs.kmutnb.ac.th/index.php/ijst/article/view/3788/pdf_269”
-Page 2 Line 67 have lower performance, “please revise this. What criteria that authors mention about it's low performance, which method is benchmarked?”
-Page 4 Line 109 the lignin polymer “and hemicellulose?”
-Page 4 Line 141 hydrolyse the cellulose. “and hemicellulose?”
-Page 7 Line 161-162 Formation of solubilized “please revise this sentence. How solid fraction of lignin and cellulose increase XOS?”
-Page 7 Line 165 almost $5 million “per how much production scale?”
-Page 9 Line 254 fineries “this paragraph, please also consider to update research about combination of hydrothermal and DES pretreatment, please check out https://www.mdpi.com/2073-4360/14/12/2313, https://www.sciencedirect.com/science/article/pii/S2589014X22000147?via%3Dihub”
-Page 9 Line 268 $151 million profit per year, “per what scale of production?”
-Page 10 Line 298-300 Although few studies “please add references”
-Page 11 Line 347 Mono feedstock biorefineries “is there any case for mixed biomass?”
-Page 16 Line 428 slightly higher cellulose contamination “what does it mean?”
-Page 17 Line 477-478 In India, around 200 million “in which year, please add infos”
-Page 17 Line 478-479 Kumar et al. (2008) study denoted “better use more recent stat”
-Page 19 Line 560-561 Studies show that 20% “what's the initial form, please clarify”
-Page 19 Line 604 Commercialization and market outlook “it will be useful info if authors add example lists of commecial lignocellulose biorefinery that really in operation”
-Page 20 Line 633-634 Based on the literature, 40% “in which year basis? actually pretreatment cost are quite varied depending on the method”
-Page 20 Line 635-636 Enzymatic hydrolysis “please add reference”
Author Response
Dear Reviewer,
Thanks for your comments and suggestion. Please find attached the file
Author Response File: Author Response.pdf
Round 2
Reviewer 1 Report
No any comments.
Reviewer 2 Report
all comments were responsed , so it is recommended for publication
