{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,27]],"date-time":"2026-02-27T03:28:02Z","timestamp":1772162882615,"version":"3.50.1"},"reference-count":44,"publisher":"MDPI AG","issue":"3","license":[{"start":{"date-parts":[[2023,2,27]],"date-time":"2023-02-27T00:00:00Z","timestamp":1677456000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"the National Key R&amp;D Program of China","award":["2019YFC1906302"],"award-info":[{"award-number":["2019YFC1906302"]}]},{"name":"the National Key R&amp;D Program of China","award":["2019YFC1906304"],"award-info":[{"award-number":["2019YFC1906304"]}]},{"name":"the National Key R&amp;D Program of China","award":["51978047"],"award-info":[{"award-number":["51978047"]}]},{"name":"the National Key R&amp;D Program of China","award":["5217100753"],"award-info":[{"award-number":["5217100753"]}]},{"name":"the National Key R&amp;D Program of China","award":["2021KJ064"],"award-info":[{"award-number":["2021KJ064"]}]},{"name":"the National Natural Science Foundation of China","award":["2019YFC1906302"],"award-info":[{"award-number":["2019YFC1906302"]}]},{"name":"the National Natural Science Foundation of China","award":["2019YFC1906304"],"award-info":[{"award-number":["2019YFC1906304"]}]},{"name":"the National Natural Science Foundation of China","award":["51978047"],"award-info":[{"award-number":["51978047"]}]},{"name":"the National Natural Science Foundation of China","award":["5217100753"],"award-info":[{"award-number":["5217100753"]}]},{"name":"the National Natural Science Foundation of China","award":["2021KJ064"],"award-info":[{"award-number":["2021KJ064"]}]},{"name":"Tianjin Education Commission Scientific Research Planning Project","award":["2019YFC1906302"],"award-info":[{"award-number":["2019YFC1906302"]}]},{"name":"Tianjin Education Commission Scientific Research Planning Project","award":["2019YFC1906304"],"award-info":[{"award-number":["2019YFC1906304"]}]},{"name":"Tianjin Education Commission Scientific Research Planning Project","award":["51978047"],"award-info":[{"award-number":["51978047"]}]},{"name":"Tianjin Education Commission Scientific Research Planning Project","award":["5217100753"],"award-info":[{"award-number":["5217100753"]}]},{"name":"Tianjin Education Commission Scientific Research Planning Project","award":["2021KJ064"],"award-info":[{"award-number":["2021KJ064"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Membranes"],"abstract":"<jats:p>Fermentation broth is plentiful with lactic acid, an important chemical applied in many fields, such as food processing, the chemical industry, and cosmetics. However, the purification of the lactic acid from the broth is still troublesome, when considering the economy. This study first investigated the purification performance of microfiltration (MF) membrane technology for a fermentation broth from kitchen waste. The effect of operation pressure, broth pH, and membrane flushing mode on the membrane filtration performance were investigated. In addition, the change in filtration performance over the increase in cycle time was also investigated. The results showed that under the optimum pressure of 100 KPa, pH of 6.0, and a backflushing mode with deionized water for 3 min, the best performance was achieved, with chroma removal, turbidity removal, protein removal and total sugar removal efficiencies of 60, 92.8, 57.64 and 32.93%, respectively. The results indicated that the MF process could be a desirable broth purification process to some extent, and it is promising in actual application. The MF process combined with other post-purification processes will form the ideal process system, which should be explored in future research.<\/jats:p>","DOI":"10.3390\/membranes13030280","type":"journal-article","created":{"date-parts":[[2023,2,27]],"date-time":"2023-02-27T05:29:37Z","timestamp":1677475777000},"page":"280","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":8,"title":["The Performance of Microfiltration Process for Purifying Lactic Acid in the Fermented Broth of Kitchen Waste"],"prefix":"10.3390","volume":"13","author":[{"given":"Yan","family":"Guo","sequence":"first","affiliation":[{"name":"Department of Environmental Engineering, University of Science and Technology Beijing, 30 Xueyuan Road, Haidian District, Beijing 100083, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Chenglong","family":"Li","sequence":"additional","affiliation":[{"name":"Department of Environmental Engineering, University of Science and Technology Beijing, 30 Xueyuan Road, Haidian District, Beijing 100083, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Hongjun","family":"Zhao","sequence":"additional","affiliation":[{"name":"Department of Environmental Engineering, University of Science and Technology Beijing, 30 Xueyuan Road, Haidian District, Beijing 100083, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ming","family":"Gao","sequence":"additional","affiliation":[{"name":"Department of Environmental Engineering, University of Science and Technology Beijing, 30 Xueyuan Road, Haidian District, Beijing 100083, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1100-7609","authenticated-orcid":false,"given":"Qunhui","family":"Wang","sequence":"additional","affiliation":[{"name":"Department of Environmental Engineering, University of Science and Technology Beijing, 30 Xueyuan Road, Haidian District, Beijing 100083, China"},{"name":"Department of Environmental Engineering, Tianjin College, University of Science and Technology Beijing, Tianjin 301830, China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2023,2,27]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","unstructured":"Kim, J., Kim, Y.-M., Lebaka, V.R., and Wee, Y.-J. 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