The Film-Forming Characterization and Structural Analysis of Pectin from Sunflower Heads
A natural low-methoxyl pectin (termed AHP, DM=25.9%) was extracted from dried heads of sunflower and showed better film-forming performance blended with hydroxypropyl methylcellulose (HPMC). The solutions and films of different HPMC/AHP blends were characterized by viscosity, transparency, mechanica...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2021-01-01
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| Series: | International Journal of Polymer Science |
| Online Access: | http://dx.doi.org/10.1155/2021/8859108 |
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| author | Xiaoxia Peng Guang Yang Qi Yue Xiaomeng Ren Yifa Zhou Mengshan Zhang |
| author_facet | Xiaoxia Peng Guang Yang Qi Yue Xiaomeng Ren Yifa Zhou Mengshan Zhang |
| author_sort | Xiaoxia Peng |
| collection | DOAJ |
| description | A natural low-methoxyl pectin (termed AHP, DM=25.9%) was extracted from dried heads of sunflower and showed better film-forming performance blended with hydroxypropyl methylcellulose (HPMC). The solutions and films of different HPMC/AHP blends were characterized by viscosity, transparency, mechanical properties, loss on drying, water drop penetration time (WDPT), disintegration and SEM. In order to analyze the structure-property relationship of film forming, AHP was separated by ion-exchange chromatography and characterized. The results showed that the blends were immiscible, but the formation of AHP gel would give the blended film better mechanical properties. AHP was fractionated into one neutral fraction and two acidic fractions (AHPA-1 and AHPA-2). The analytical results showed that AHPA-1 and AHPA-2 were identified to be homogalacturonan- (HG-) rich pectins with low DM, and the molecular weights of them were estimated to be 106 kDa and 226 kDa, respectively. Due to the high content of the HG domain, low DM and high molecular weights, AHP had excellent gelling properties induced by Ca2+ and was added to improve the film-forming properties of HPMC and to develop plant hollow capsules. |
| format | Article |
| id | doaj-art-3375cab20fec4964b7a96b34b7ba6a34 |
| institution | Kabale University |
| issn | 1687-9422 1687-9430 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Polymer Science |
| spelling | doaj-art-3375cab20fec4964b7a96b34b7ba6a342025-02-03T01:05:28ZengWileyInternational Journal of Polymer Science1687-94221687-94302021-01-01202110.1155/2021/88591088859108The Film-Forming Characterization and Structural Analysis of Pectin from Sunflower HeadsXiaoxia Peng0Guang Yang1Qi Yue2Xiaomeng Ren3Yifa Zhou4Mengshan Zhang5Jilin Province Key Laboratory on Chemistry and Biology of Natural Drugs in Changbai Mountain, School of Life Sciences, Northeast Normal University, Changchun 130024, ChinaJilin Province Key Laboratory on Chemistry and Biology of Natural Drugs in Changbai Mountain, School of Life Sciences, Northeast Normal University, Changchun 130024, ChinaJilin Province Key Laboratory on Chemistry and Biology of Natural Drugs in Changbai Mountain, School of Life Sciences, Northeast Normal University, Changchun 130024, ChinaJilin Province Key Laboratory on Chemistry and Biology of Natural Drugs in Changbai Mountain, School of Life Sciences, Northeast Normal University, Changchun 130024, ChinaJilin Province Key Laboratory on Chemistry and Biology of Natural Drugs in Changbai Mountain, School of Life Sciences, Northeast Normal University, Changchun 130024, ChinaJilin Province Key Laboratory on Chemistry and Biology of Natural Drugs in Changbai Mountain, School of Life Sciences, Northeast Normal University, Changchun 130024, ChinaA natural low-methoxyl pectin (termed AHP, DM=25.9%) was extracted from dried heads of sunflower and showed better film-forming performance blended with hydroxypropyl methylcellulose (HPMC). The solutions and films of different HPMC/AHP blends were characterized by viscosity, transparency, mechanical properties, loss on drying, water drop penetration time (WDPT), disintegration and SEM. In order to analyze the structure-property relationship of film forming, AHP was separated by ion-exchange chromatography and characterized. The results showed that the blends were immiscible, but the formation of AHP gel would give the blended film better mechanical properties. AHP was fractionated into one neutral fraction and two acidic fractions (AHPA-1 and AHPA-2). The analytical results showed that AHPA-1 and AHPA-2 were identified to be homogalacturonan- (HG-) rich pectins with low DM, and the molecular weights of them were estimated to be 106 kDa and 226 kDa, respectively. Due to the high content of the HG domain, low DM and high molecular weights, AHP had excellent gelling properties induced by Ca2+ and was added to improve the film-forming properties of HPMC and to develop plant hollow capsules.http://dx.doi.org/10.1155/2021/8859108 |
| spellingShingle | Xiaoxia Peng Guang Yang Qi Yue Xiaomeng Ren Yifa Zhou Mengshan Zhang The Film-Forming Characterization and Structural Analysis of Pectin from Sunflower Heads International Journal of Polymer Science |
| title | The Film-Forming Characterization and Structural Analysis of Pectin from Sunflower Heads |
| title_full | The Film-Forming Characterization and Structural Analysis of Pectin from Sunflower Heads |
| title_fullStr | The Film-Forming Characterization and Structural Analysis of Pectin from Sunflower Heads |
| title_full_unstemmed | The Film-Forming Characterization and Structural Analysis of Pectin from Sunflower Heads |
| title_short | The Film-Forming Characterization and Structural Analysis of Pectin from Sunflower Heads |
| title_sort | film forming characterization and structural analysis of pectin from sunflower heads |
| url | http://dx.doi.org/10.1155/2021/8859108 |
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