Influence of Elevated Potassium Fertilization on Structural and Functional Properties of Sweet Potato Root Tuber Starch
Nine sweet potato varieties with different flesh colors were cultivated under uniform environmental conditions with potassium (K) fertilizer treatments at levels of 0, 22.5, and 45 kg/ha. The structural and functional properties of the starches were subsequently analyzed. The soluble sugar content i...
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MDPI AG
2024-12-01
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| Series: | Foods |
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| Online Access: | https://www.mdpi.com/2304-8158/13/23/3890 |
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| author | Ke Guo Shuai Liu Long Zhang Qian Zhang Yang Yu Peiyong Ma Zhaodong Jia Cunxu Wei Xiaofeng Bian |
| author_facet | Ke Guo Shuai Liu Long Zhang Qian Zhang Yang Yu Peiyong Ma Zhaodong Jia Cunxu Wei Xiaofeng Bian |
| author_sort | Ke Guo |
| collection | DOAJ |
| description | Nine sweet potato varieties with different flesh colors were cultivated under uniform environmental conditions with potassium (K) fertilizer treatments at levels of 0, 22.5, and 45 kg/ha. The structural and functional properties of the starches were subsequently analyzed. The soluble sugar content in the dry root tuber increased, with higher K levels in most varieties. Amylose content decreased in Sushu16 but increased in Ningzishu1, with no significant differences observed in other varieties across different K levels. Elevated K levels had no effect on starch protein content, crystalline type, or gelatinization enthalpy. The impact of K fertilizer on starch thermal and pasting properties varied among the varieties. PLSR and PLS-DA analyses revealed that genotype background was the primary factor influencing starch properties. This research will provide a reference for the improvement of sweet potato production quality and efficiency and a scientific basis for the cultivation and utilization of sweet potato root tubers. |
| format | Article |
| id | doaj-art-48eba9b202d742f5bfac880ed95091ac |
| institution | OA Journals |
| issn | 2304-8158 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | MDPI AG |
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| series | Foods |
| spelling | doaj-art-48eba9b202d742f5bfac880ed95091ac2025-08-20T01:55:38ZengMDPI AGFoods2304-81582024-12-011323389010.3390/foods13233890Influence of Elevated Potassium Fertilization on Structural and Functional Properties of Sweet Potato Root Tuber StarchKe Guo0Shuai Liu1Long Zhang2Qian Zhang3Yang Yu4Peiyong Ma5Zhaodong Jia6Cunxu Wei7Xiaofeng Bian8Institute of Food Crops, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, ChinaInstitute of Food Crops, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, ChinaKey Laboratory of Crop Genetics and Physiology of Jiangsu Province/Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding, Yangzhou University, Yangzhou 225009, ChinaInstitute of Food Crops, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, ChinaInstitute of Food Crops, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, ChinaInstitute of Food Crops, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, ChinaInstitute of Food Crops, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, ChinaKey Laboratory of Crop Genetics and Physiology of Jiangsu Province/Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding, Yangzhou University, Yangzhou 225009, ChinaInstitute of Food Crops, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, ChinaNine sweet potato varieties with different flesh colors were cultivated under uniform environmental conditions with potassium (K) fertilizer treatments at levels of 0, 22.5, and 45 kg/ha. The structural and functional properties of the starches were subsequently analyzed. The soluble sugar content in the dry root tuber increased, with higher K levels in most varieties. Amylose content decreased in Sushu16 but increased in Ningzishu1, with no significant differences observed in other varieties across different K levels. Elevated K levels had no effect on starch protein content, crystalline type, or gelatinization enthalpy. The impact of K fertilizer on starch thermal and pasting properties varied among the varieties. PLSR and PLS-DA analyses revealed that genotype background was the primary factor influencing starch properties. This research will provide a reference for the improvement of sweet potato production quality and efficiency and a scientific basis for the cultivation and utilization of sweet potato root tubers.https://www.mdpi.com/2304-8158/13/23/3890sweet potatopotassium fertilizerstarchstructural propertiesfunctional properties |
| spellingShingle | Ke Guo Shuai Liu Long Zhang Qian Zhang Yang Yu Peiyong Ma Zhaodong Jia Cunxu Wei Xiaofeng Bian Influence of Elevated Potassium Fertilization on Structural and Functional Properties of Sweet Potato Root Tuber Starch Foods sweet potato potassium fertilizer starch structural properties functional properties |
| title | Influence of Elevated Potassium Fertilization on Structural and Functional Properties of Sweet Potato Root Tuber Starch |
| title_full | Influence of Elevated Potassium Fertilization on Structural and Functional Properties of Sweet Potato Root Tuber Starch |
| title_fullStr | Influence of Elevated Potassium Fertilization on Structural and Functional Properties of Sweet Potato Root Tuber Starch |
| title_full_unstemmed | Influence of Elevated Potassium Fertilization on Structural and Functional Properties of Sweet Potato Root Tuber Starch |
| title_short | Influence of Elevated Potassium Fertilization on Structural and Functional Properties of Sweet Potato Root Tuber Starch |
| title_sort | influence of elevated potassium fertilization on structural and functional properties of sweet potato root tuber starch |
| topic | sweet potato potassium fertilizer starch structural properties functional properties |
| url | https://www.mdpi.com/2304-8158/13/23/3890 |
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