Get quick answers to your questions about the article from our AI researcher chatbot
{'id': 'https://openalex.org/W3025904176', 'doi': 'https://doi.org/10.1016/j.carbpol.2020.116441', 'title': 'Hyaluronic acid and Chondroitin sulfate from marine and terrestrial sources: Extraction and purification methods', 'display_name': 'Hyaluronic acid and Chondroitin sulfate from marine and terrestrial sources: Extraction and purification methods', 'publication_year': 2020, 'publication_date': '2020-05-18', 'ids': {'openalex': 'https://openalex.org/W3025904176', 'doi': 'https://doi.org/10.1016/j.carbpol.2020.116441', 'mag': '3025904176', 'pmid': 'https://pubmed.ncbi.nlm.nih.gov/32532391'}, 'language': 'en', 'primary_location': {'is_oa': True, 'landing_page_url': 'https://doi.org/10.1016/j.carbpol.2020.116441', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S64311837', 'display_name': 'Carbohydrate Polymers', 'issn_l': '0144-8617', 'issn': ['0144-8617', '1879-1344'], 'is_oa': False, 'is_in_doaj': False, 'is_core': True, 'host_organization': 'https://openalex.org/P4310320990', 'host_organization_name': 'Elsevier BV', 'host_organization_lineage': ['https://openalex.org/P4310320990'], 'host_organization_lineage_names': ['Elsevier BV'], 'type': 'journal'}, 'license': 'cc-by-nc-nd', 'license_id': 'https://openalex.org/licenses/cc-by-nc-nd', 'version': 'publishedVersion', 'is_accepted': True, 'is_published': True}, 'type': 'review', 'type_crossref': 'journal-article', 'indexed_in': ['crossref', 'pubmed'], 'open_access': {'is_oa': True, 'oa_status': 'hybrid', 'oa_url': 'https://doi.org/10.1016/j.carbpol.2020.116441', 'any_repository_has_fulltext': True}, 'authorships': [{'author_position': 'first', 'author': {'id': 'https://openalex.org/A5066164349', 'display_name': 'Maha M. Abdallah', 'orcid': 'https://orcid.org/0000-0003-2149-1649'}, 'institutions': [{'id': 'https://openalex.org/I141596103', 'display_name': 'University of Lisbon', 'ror': 'https://ror.org/01c27hj86', 'country_code': 'PT', 'type': 'education', 'lineage': ['https://openalex.org/I141596103']}, {'id': 'https://openalex.org/I83558840', 'display_name': 'Universidade Nova de Lisboa', 'ror': 'https://ror.org/02xankh89', 'country_code': 'PT', 'type': 'education', 'lineage': ['https://openalex.org/I83558840']}], 'countries': ['PT'], 'is_corresponding': False, 'raw_author_name': 'Maha M. Abdallah', 'raw_affiliation_strings': ['ITQB-UNL, Institute of Chemical and Biological Technology, New University of Lisbon, Avenida da República, 2780-157, Portugal', 'iBET, Institute of Experimental Biology and Technology, Avenida da República, Estação Agronómica, 2780-157, Portugal'], 'affiliations': [{'raw_affiliation_string': 'iBET, Institute of Experimental Biology and Technology, Avenida da República, Estação Agronómica, 2780-157, Portugal', 'institution_ids': []}, {'raw_affiliation_string': 'ITQB-UNL, Institute of Chemical and Biological Technology, New University of Lisbon, Avenida da República, 2780-157, Portugal', 'institution_ids': ['https://openalex.org/I141596103', 'https://openalex.org/I83558840']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5012033252', 'display_name': 'Naiara Fernández', 'orcid': 'https://orcid.org/0000-0002-3902-2966'}, 'institutions': [], 'countries': ['PT'], 'is_corresponding': False, 'raw_author_name': 'Naiara Fernández', 'raw_affiliation_strings': ['iBET, Institute of Experimental Biology and Technology, Avenida da República, Estação Agronómica, 2780-157, Portugal'], 'affiliations': [{'raw_affiliation_string': 'iBET, Institute of Experimental Biology and Technology, Avenida da República, Estação Agronómica, 2780-157, Portugal', 'institution_ids': []}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5009683201', 'display_name': 'Ana A. Matias', 'orcid': 'https://orcid.org/0000-0002-4888-9414'}, 'institutions': [], 'countries': ['PT'], 'is_corresponding': False, 'raw_author_name': 'Ana A. Matias', 'raw_affiliation_strings': ['iBET, Institute of Experimental Biology and Technology, Avenida da República, Estação Agronómica, 2780-157, Portugal'], 'affiliations': [{'raw_affiliation_string': 'iBET, Institute of Experimental Biology and Technology, Avenida da República, Estação Agronómica, 2780-157, Portugal', 'institution_ids': []}]}, {'author_position': 'last', 'author': {'id': 'https://openalex.org/A5059925110', 'display_name': 'Maria Rosário Bronze', 'orcid': 'https://orcid.org/0000-0001-5016-4634'}, 'institutions': [{'id': 'https://openalex.org/I141596103', 'display_name': 'University of Lisbon', 'ror': 'https://ror.org/01c27hj86', 'country_code': 'PT', 'type': 'education', 'lineage': ['https://openalex.org/I141596103']}, {'id': 'https://openalex.org/I83558840', 'display_name': 'Universidade Nova de Lisboa', 'ror': 'https://ror.org/02xankh89', 'country_code': 'PT', 'type': 'education', 'lineage': ['https://openalex.org/I83558840']}], 'countries': ['PT'], 'is_corresponding': True, 'raw_author_name': 'Maria do Rosário Bronze', 'raw_affiliation_strings': ['FFULisboa, Faculty of Pharmacy, University of Lisbon, Avenida Professor Gama Pinto, 1649-003, Portugal', 'ITQB-UNL, Institute of Chemical and Biological Technology, New University of Lisbon, Avenida da República, 2780-157, Portugal', 'iBET, Institute of Experimental Biology and Technology, Avenida da República, Estação Agronómica, 2780-157, Portugal'], 'affiliations': [{'raw_affiliation_string': 'FFULisboa, Faculty of Pharmacy, University of Lisbon, Avenida Professor Gama Pinto, 1649-003, Portugal', 'institution_ids': ['https://openalex.org/I141596103']}, {'raw_affiliation_string': 'iBET, Institute of Experimental Biology and Technology, Avenida da República, Estação Agronómica, 2780-157, Portugal', 'institution_ids': []}, {'raw_affiliation_string': 'ITQB-UNL, Institute of Chemical and Biological Technology, New University of Lisbon, Avenida da República, 2780-157, Portugal', 'institution_ids': ['https://openalex.org/I141596103', 'https://openalex.org/I83558840']}]}], 'institution_assertions': [], 'countries_distinct_count': 1, 'institutions_distinct_count': 2, 'corresponding_author_ids': ['https://openalex.org/A5059925110'], 'corresponding_institution_ids': ['https://openalex.org/I141596103', 'https://openalex.org/I83558840'], 'apc_list': {'value': 4820, 'currency': 'USD', 'value_usd': 4820, 'provenance': 'doaj'}, 'apc_paid': {'value': 4820, 'currency': 'USD', 'value_usd': 4820, 'provenance': 'doaj'}, 'fwci': 2.98, 'has_fulltext': True, 'fulltext_origin': 'pdf', 'cited_by_count': 117, 'citation_normalized_percentile': {'value': 0.998041, 'is_in_top_1_percent': True, 'is_in_top_10_percent': True}, 'cited_by_percentile_year': {'min': 98, 'max': 99}, 'biblio': {'volume': '243', 'issue': None, 'first_page': '116441', 'last_page': '116441'}, 'is_retracted': False, 'is_paratext': False, 'primary_topic': {'id': 'https://openalex.org/T11131', 'display_name': 'Role of Extracellular Matrix in Biological Signaling', 'score': 0.9999, 'subfield': {'id': 'https://openalex.org/subfields/1307', 'display_name': 'Cell Biology'}, 'field': {'id': 'https://openalex.org/fields/13', 'display_name': 'Biochemistry, Genetics and Molecular Biology'}, 'domain': {'id': 'https://openalex.org/domains/1', 'display_name': 'Life Sciences'}}, 'topics': [{'id': 'https://openalex.org/T11131', 'display_name': 'Role of Extracellular Matrix in Biological Signaling', 'score': 0.9999, 'subfield': {'id': 'https://openalex.org/subfields/1307', 'display_name': 'Cell Biology'}, 'field': {'id': 'https://openalex.org/fields/13', 'display_name': 'Biochemistry, Genetics and Molecular Biology'}, 'domain': {'id': 'https://openalex.org/domains/1', 'display_name': 'Life Sciences'}}, {'id': 'https://openalex.org/T12085', 'display_name': 'Collagen Structure and Applications', 'score': 0.9924, 'subfield': {'id': 'https://openalex.org/subfields/2502', 'display_name': 'Biomaterials'}, 'field': {'id': 'https://openalex.org/fields/25', 'display_name': 'Materials Science'}, 'domain': {'id': 'https://openalex.org/domains/3', 'display_name': 'Physical Sciences'}}, {'id': 'https://openalex.org/T11390', 'display_name': 'Bioactive Compounds in Seaweed', 'score': 0.9824, 'subfield': {'id': 'https://openalex.org/subfields/1104', 'display_name': 'Aquatic Science'}, 'field': {'id': 'https://openalex.org/fields/11', 'display_name': 'Agricultural and Biological Sciences'}, 'domain': {'id': 'https://openalex.org/domains/1', 'display_name': 'Life Sciences'}}], 'keywords': [{'id': 'https://openalex.org/keywords/hyaluronan', 'display_name': 'Hyaluronan', 'score': 0.524129}, {'id': 'https://openalex.org/keywords/chondroitin', 'display_name': 'Chondroitin', 'score': 0.49344364}], 'concepts': [{'id': 'https://openalex.org/C2779553658', 'wikidata': 'https://www.wikidata.org/wiki/Q408014', 'display_name': 'Chondroitin sulfate', 'level': 3, 'score': 0.69940877}, {'id': 'https://openalex.org/C4725764', 'wikidata': 'https://www.wikidata.org/wiki/Q844704', 'display_name': 'Extraction (chemistry)', 'level': 2, 'score': 0.67816585}, {'id': 'https://openalex.org/C2777529286', 'wikidata': 'https://www.wikidata.org/wiki/Q337231', 'display_name': 'Hyaluronic acid', 'level': 2, 'score': 0.6564129}, {'id': 'https://openalex.org/C43617362', 'wikidata': 'https://www.wikidata.org/wiki/Q170050', 'display_name': 'Chromatography', 'level': 1, 'score': 0.6320604}, {'id': 'https://openalex.org/C100817775', 'wikidata': 'https://www.wikidata.org/wiki/Q134219', 'display_name': 'Polysaccharide', 'level': 2, 'score': 0.5933327}, {'id': 'https://openalex.org/C185592680', 'wikidata': 'https://www.wikidata.org/wiki/Q2329', 'display_name': 'Chemistry', 'level': 0, 'score': 0.590315}, {'id': 'https://openalex.org/C155138218', 'wikidata': 'https://www.wikidata.org/wiki/Q994559', 'display_name': 'Sulfation', 'level': 2, 'score': 0.5103614}, {'id': 'https://openalex.org/C2776735749', 'wikidata': 'https://www.wikidata.org/wiki/Q4862650', 'display_name': 'Chondroitin', 'level': 3, 'score': 0.49344364}, {'id': 'https://openalex.org/C94412978', 'wikidata': 'https://www.wikidata.org/wiki/Q103135', 'display_name': 'Hydrolysis', 'level': 2, 'score': 0.47967148}, {'id': 'https://openalex.org/C2778343803', 'wikidata': 'https://www.wikidata.org/wiki/Q172290', 'display_name': 'Sulfate', 'level': 2, 'score': 0.46369776}, {'id': 'https://openalex.org/C55493867', 'wikidata': 'https://www.wikidata.org/wiki/Q7094', 'display_name': 'Biochemistry', 'level': 1, 'score': 0.3657967}, {'id': 'https://openalex.org/C153074725', 'wikidata': 'https://www.wikidata.org/wiki/Q407553', 'display_name': 'Glycosaminoglycan', 'level': 2, 'score': 0.16730833}, {'id': 'https://openalex.org/C86803240', 'wikidata': 'https://www.wikidata.org/wiki/Q420', 'display_name': 'Biology', 'level': 0, 'score': 0.15548375}, {'id': 'https://openalex.org/C178790620', 'wikidata': 'https://www.wikidata.org/wiki/Q11351', 'display_name': 'Organic chemistry', 'level': 1, 'score': 0.12359142}, {'id': 'https://openalex.org/C105702510', 'wikidata': 'https://www.wikidata.org/wiki/Q514', 'display_name': 'Anatomy', 'level': 1, 'score': 0.056715786}], 'mesh': [{'descriptor_ui': 'D001688', 'descriptor_name': 'Biological Products', 'qualifier_ui': 'Q000302', 'qualifier_name': 'isolation & purification', 'is_major_topic': True}, {'descriptor_ui': 'D002356', 'descriptor_name': 'Cartilage', 'qualifier_ui': 'Q000737', 'qualifier_name': 'chemistry', 'is_major_topic': True}, {'descriptor_ui': 'D002809', 'descriptor_name': 'Chondroitin Sulfates', 'qualifier_ui': 'Q000302', 'qualifier_name': 'isolation & purification', 'is_major_topic': True}, {'descriptor_ui': 'D006820', 'descriptor_name': 'Hyaluronic Acid', 'qualifier_ui': 'Q000302', 'qualifier_name': 'isolation & purification', 'is_major_topic': True}, {'descriptor_ui': 'D000818', 'descriptor_name': 'Animals', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D059001', 'descriptor_name': 'Aquatic Organisms', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D059001', 'descriptor_name': 'Aquatic Organisms', 'qualifier_ui': 'Q000737', 'qualifier_name': 'chemistry', 'is_major_topic': False}, {'descriptor_ui': 'D001688', 'descriptor_name': 'Biological Products', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D002356', 'descriptor_name': 'Cartilage', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D002809', 'descriptor_name': 'Chondroitin Sulfates', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D006820', 'descriptor_name': 'Hyaluronic Acid', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}], 'locations_count': 3, 'locations': [{'is_oa': True, 'landing_page_url': 'https://doi.org/10.1016/j.carbpol.2020.116441', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S64311837', 'display_name': 'Carbohydrate Polymers', 'issn_l': '0144-8617', 'issn': ['0144-8617', '1879-1344'], 'is_oa': False, 'is_in_doaj': False, 'is_core': True, 'host_organization': 'https://openalex.org/P4310320990', 'host_organization_name': 'Elsevier BV', 'host_organization_lineage': ['https://openalex.org/P4310320990'], 'host_organization_lineage_names': ['Elsevier BV'], 'type': 'journal'}, 'license': 'cc-by-nc-nd', 'license_id': 'https://openalex.org/licenses/cc-by-nc-nd', 'version': 'publishedVersion', 'is_accepted': True, 'is_published': True}, {'is_oa': True, 'landing_page_url': 'https://zenodo.org/record/7217137', 'pdf_url': 'https://zenodo.org/records/7217137/files/1-s2.0-S0144861720306159-main.pdf', 'source': {'id': 'https://openalex.org/S4306400562', 'display_name': 'Zenodo (CERN European Organization for Nuclear Research)', 'issn_l': None, 'issn': None, 'is_oa': True, 'is_in_doaj': False, 'is_core': False, 'host_organization': 'https://openalex.org/I67311998', 'host_organization_name': 'European Organization for Nuclear Research', 'host_organization_lineage': ['https://openalex.org/I67311998'], 'host_organization_lineage_names': ['European Organization for Nuclear Research'], 'type': 'repository'}, 'license': 'cc-by', 'license_id': 'https://openalex.org/licenses/cc-by', 'version': 'publishedVersion', 'is_accepted': True, 'is_published': True}, {'is_oa': False, 'landing_page_url': 'https://pubmed.ncbi.nlm.nih.gov/32532391', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S4306525036', 'display_name': 'PubMed', 'issn_l': None, 'issn': None, 'is_oa': False, 'is_in_doaj': False, 'is_core': False, 'host_organization': 'https://openalex.org/I1299303238', 'host_organization_name': 'National Institutes of Health', 'host_organization_lineage': ['https://openalex.org/I1299303238'], 'host_organization_lineage_names': ['National Institutes of Health'], 'type': 'repository'}, 'license': None, 'license_id': None, 'version': None, 'is_accepted': False, 'is_published': False}], 'best_oa_location': {'is_oa': True, 'landing_page_url': 'https://doi.org/10.1016/j.carbpol.2020.116441', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S64311837', 'display_name': 'Carbohydrate Polymers', 'issn_l': '0144-8617', 'issn': ['0144-8617', '1879-1344'], 'is_oa': False, 'is_in_doaj': False, 'is_core': True, 'host_organization': 'https://openalex.org/P4310320990', 'host_organization_name': 'Elsevier BV', 'host_organization_lineage': ['https://openalex.org/P4310320990'], 'host_organization_lineage_names': ['Elsevier BV'], 'type': 'journal'}, 'license': 'cc-by-nc-nd', 'license_id': 'https://openalex.org/licenses/cc-by-nc-nd', 'version': 'publishedVersion', 'is_accepted': True, 'is_published': True}, 'sustainable_development_goals': [{'score': 0.87, 'id': 'https://metadata.un.org/sdg/14', 'display_name': 'Life below water'}], 'grants': [], 'datasets': [], 'versions': [], 'referenced_works_count': 135, 'referenced_works': ['https://openalex.org/W100847059', 'https://openalex.org/W1250029823', 'https://openalex.org/W1442816972', 'https://openalex.org/W1476573016', 'https://openalex.org/W148911500', 'https://openalex.org/W1498931311', 'https://openalex.org/W1524832242', 'https://openalex.org/W1567431884', 'https://openalex.org/W1577628093', 'https://openalex.org/W1596428850', 'https://openalex.org/W1596635092', 'https://openalex.org/W1632241557', 'https://openalex.org/W1676544275', 'https://openalex.org/W1721550440', 'https://openalex.org/W1850615534', 'https://openalex.org/W1921938193', 'https://openalex.org/W1971222243', 'https://openalex.org/W1972880064', 'https://openalex.org/W1972898307', 'https://openalex.org/W1975629128', 'https://openalex.org/W1976337994', 'https://openalex.org/W1992699675', 'https://openalex.org/W1994130883', 'https://openalex.org/W1994442810', 'https://openalex.org/W1999330037', 'https://openalex.org/W2004878297', 'https://openalex.org/W2005177631', 'https://openalex.org/W2013090236', 'https://openalex.org/W2013941038', 'https://openalex.org/W2013962650', 'https://openalex.org/W2015262545', 'https://openalex.org/W2016064004', 'https://openalex.org/W2017403861', 'https://openalex.org/W2017734451', 'https://openalex.org/W2018663021', 'https://openalex.org/W2019210012', 'https://openalex.org/W2020389628', 'https://openalex.org/W2022083605', 'https://openalex.org/W2022146866', 'https://openalex.org/W2024056569', 'https://openalex.org/W2025533316', 'https://openalex.org/W2026384551', 'https://openalex.org/W2032513426', 'https://openalex.org/W2036892288', 'https://openalex.org/W2037061832', 'https://openalex.org/W2039001476', 'https://openalex.org/W2042131792', 'https://openalex.org/W2043423139', 'https://openalex.org/W2045784163', 'https://openalex.org/W2052651983', 'https://openalex.org/W2053060307', 'https://openalex.org/W2056990412', 'https://openalex.org/W2057559313', 'https://openalex.org/W2058844726', 'https://openalex.org/W2065976126', 'https://openalex.org/W2066371891', 'https://openalex.org/W2067278095', 'https://openalex.org/W2067776594', 'https://openalex.org/W2069176002', 'https://openalex.org/W2069649792', 'https://openalex.org/W2074568498', 'https://openalex.org/W2078366002', 'https://openalex.org/W2078408645', 'https://openalex.org/W2079765585', 'https://openalex.org/W2081189780', 'https://openalex.org/W2081863166', 'https://openalex.org/W2085529173', 'https://openalex.org/W2085742315', 'https://openalex.org/W2089905977', 'https://openalex.org/W2093261012', 'https://openalex.org/W2099564002', 'https://openalex.org/W2108771979', 'https://openalex.org/W2115709659', 'https://openalex.org/W2117360490', 'https://openalex.org/W2119329999', 'https://openalex.org/W2121360069', 'https://openalex.org/W2127544415', 'https://openalex.org/W2130996362', 'https://openalex.org/W2135532785', 'https://openalex.org/W2137245962', 'https://openalex.org/W2143612388', 'https://openalex.org/W2144204901', 'https://openalex.org/W2148197556', 'https://openalex.org/W2148968134', 'https://openalex.org/W2151403735', 'https://openalex.org/W2151437883', 'https://openalex.org/W2154134350', 'https://openalex.org/W2161980571', 'https://openalex.org/W2164451596', 'https://openalex.org/W2215118184', 'https://openalex.org/W2280400535', 'https://openalex.org/W2320909523', 'https://openalex.org/W2321145827', 'https://openalex.org/W2346299577', 'https://openalex.org/W2348990994', 'https://openalex.org/W2396070621', 'https://openalex.org/W2403034862', 'https://openalex.org/W2416604435', 'https://openalex.org/W2437002096', 'https://openalex.org/W2501194258', 'https://openalex.org/W2516054180', 'https://openalex.org/W2519091670', 'https://openalex.org/W2564835371', 'https://openalex.org/W2565645061', 'https://openalex.org/W2572542501', 'https://openalex.org/W2583158191', 'https://openalex.org/W2594133945', 'https://openalex.org/W2612328146', 'https://openalex.org/W2624950967', 'https://openalex.org/W2742334812', 'https://openalex.org/W2743062228', 'https://openalex.org/W2750854254', 'https://openalex.org/W2761031266', 'https://openalex.org/W2794696001', 'https://openalex.org/W2804573223', 'https://openalex.org/W2884505656', 'https://openalex.org/W2885008471', 'https://openalex.org/W2890909161', 'https://openalex.org/W2897676813', 'https://openalex.org/W2899255104', 'https://openalex.org/W2905226814', 'https://openalex.org/W2908922922', 'https://openalex.org/W2937369800', 'https://openalex.org/W2939422893', 'https://openalex.org/W2965874367', 'https://openalex.org/W3004498269', 'https://openalex.org/W313279893', 'https://openalex.org/W4054599', 'https://openalex.org/W4229810505', 'https://openalex.org/W4238213357', 'https://openalex.org/W4243231451', 'https://openalex.org/W4360795051', 'https://openalex.org/W585933140', 'https://openalex.org/W79707816', 'https://openalex.org/W9820363'], 'related_works': ['https://openalex.org/W2995443226', 'https://openalex.org/W2342328815', 'https://openalex.org/W2133332264', 'https://openalex.org/W2066073000', 'https://openalex.org/W2052686906', 'https://openalex.org/W2005960069', 'https://openalex.org/W1988811422', 'https://openalex.org/W1901583623', 'https://openalex.org/W1567590709', 'https://openalex.org/W1510935870'], 'abstract_inverted_index': {'Hyaluronic': [0], 'acid': [1], '(HA)': [2], 'and': [3, 18, 32, 39, 46, 83, 99, 110, 117, 125, 130, 141], 'chondroitin': [4], 'sulfate': [5], '(CS)': [6], 'are': [7], 'valuable': [8, 137], 'bioactive': [9], 'polysaccharides': [10], 'that': [11], 'have': [12], 'been': [13], 'highly': [14], 'used': [15, 66, 98], 'in': [16, 75, 91], 'biomedical': [17], 'pharmaceutical': [19], 'applications.': [20], 'Extensive': [21], 'research': [22], 'was': [23], 'done': [24], 'to': [25, 44, 105, 134], 'ensure': [26], 'their': [27], 'efficient': [28], 'extraction': [29, 93, 129], 'from': [30, 139], 'marine': [31, 140], 'terrestrial': [33, 142], 'by-products': [34], 'at': [35], 'a': [36], 'high': [37], 'yield': [38], 'purity,': [40, 107], 'using': [41], 'specific': [42, 106], 'techniques': [43], 'isolate': [45, 135], 'purify': [47], 'them.': [48], 'In': [49], 'general,': [50], 'the': [51, 54, 61, 86, 92, 100, 114, 123], 'cartilage': [52], 'is': [53, 64], 'most': [55], 'common': [56], 'source': [57, 67], 'for': [58], 'CS,': [59], 'while': [60], 'vitreous': [62], 'humor': [63], 'main': [65], 'of': [68, 81, 85, 113, 127], 'HA.': [69], 'The': [70], 'developed': [71, 133], 'methods': [72, 132], 'were': [73], 'based': [74], 'general': [76], 'on': [77, 122], 'tissue': [78], 'hydrolysis,': [79], 'removal': [80], 'proteins': [82], 'purification': [84, 101, 131], 'target': [87], 'biopolymers.': [88], 'They': [89], 'differ': [90], 'conditions,': [94], 'enzymes': [95], 'and/or': [96], 'solvents': [97], 'technique.': [102], 'This': [103, 119], 'leads': [104], 'molecular': [108], 'weight': [109], 'sulfation': [111], 'pattern': [112], 'isolated': [115], 'HA': [116], 'CS.': [118], 'review': [120], 'focuses': [121], 'analysis': [124], 'comparison': [126], 'different': [128], 'these': [136], 'biopolymers': [138], 'animal': [143], 'by-products.': [144]}, 'cited_by_api_url': 'https://api.openalex.org/works?filter=cites:W3025904176', 'counts_by_year': [{'year': 2024, 'cited_by_count': 25}, {'year': 2023, 'cited_by_count': 29}, {'year': 2022, 'cited_by_count': 39}, {'year': 2021, 'cited_by_count': 17}, {'year': 2020, 'cited_by_count': 2}], 'updated_date': '2024-09-23T20:10:00.839595', 'created_date': '2020-05-21'}