title: Morphology and Physicochemical Properties of 3 Lilium Bulb Starches.
abstract: Lilium (Liliaceae) is an important wild plant and is used as food and traditional medicine worldwide. One Lilium cultivar (Lilium lancifolium) and 2 wild types (Lilium leucanthum and Lilium rosthornii) that are commonly distributed in Western China were investigated to completely utilize Lilium resources. The morphology of the flowers, bulbs, and scales and soluble sugar, total starch and amylose contents was remarkably different among the 3 Lilium species. Starches from the 3 Lilium species presented different granule size and shape. The starch of L. lancifolium exhibited higher swelling power and solubility than that of L. leucanthum and L. rosthornii. The starches from the 3 Lilium bulbs presented similar X-ray diffraction patterns and Fourier transform infrared spectroscopy. Among the 3 Lilium species, L. lancifolium showed the lowest crystallinity and the largest proportion of ordered structures in granule external region. Gelatinization temperatures and retrogradation percentage were significantly lower, but gelatinization enthalpy was significantly higher in L. lancifolium than those in L. leucanthum and L. rosthornii. Pasting properties of starch were different among the 3 Lilium species. Starch from L. lancifolium showed the highest degree of amylopectin branching, followed by L. leucanthum and L. rosthornii. Starches from L. leucanthum and L. rosthornii showed higher resistance to porcine pancreatic α-amylase hydrolysis compared to that of L. lancifolium. These results indicated that 3 Lilium bulbs exhibited remarkable differences in morphological, crystal, thermal, pasting, and hydrolysis properties of starches.
authors.affiliation: Jiangsu Key laboratory of Crop Genetics and Physiology/Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou Univ, Yangzhou, 225009, China.
authors.forename: Xurun
authors.initials: X
authors.lastname: Yu
authors.affiliation: Jiangsu Key laboratory of Crop Genetics and Physiology/Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou Univ, Yangzhou, 225009, China.
authors.forename: Jing
authors.initials: J
authors.lastname: Zhang
authors.affiliation: Jiangsu Inst. of Agricultural Science, Lixiahe District, Yangzhou, 225009, China.
authors.forename: Aimin
authors.initials: A
authors.lastname: Li
authors.affiliation: Jiangsu Key laboratory of Crop Genetics and Physiology/Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou Univ, Yangzhou, 225009, China.
authors.forename: Zhong
authors.initials: Z
authors.lastname: Wang
authors.affiliation: Jiangsu Key laboratory of Crop Genetics and Physiology/Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou Univ, Yangzhou, 225009, China.
authors.forename: Fei
authors.initials: F
authors.lastname: Xiong
mesh_terms: D000687:Amylopectin / Q000737:chemistry; D000688:Amylose / Q000737:chemistry; D000818:Animals; D002681:China; D006868:Hydrolysis; D027762:Lilium / Q000033:anatomy & histology / Q000737:chemistry / Q000235:genetics; D055292:Pancreatic alpha-Amylases / Q000378:metabolism; D010641:Phenotype; D018517:Plant Roots / Q000737:chemistry*; D012995:Solubility; D013045:Species Specificity; D013213:Starch / Q000737:chemistry*; D013552:Swine; D013696:Temperature; D014961:X-Ray Diffraction
chemical_list: D013213:Starch; D000688:Amylose; D000687:Amylopectin; D055292:Pancreatic alpha-Amylases
keywords: Lilium; crystallinity; morphology; physicochemical properties; starch