摘要
【目的】研究不同规格、不同部位籽瓜果皮质地特性之间的差异、变异程度和变化规律。【方法】以小型、中型和大型3种不同规格的籽瓜为试材,在位移模式下,利用P/2柱状探头对籽瓜不同部位的试切样品进行穿刺试验,测定其强度、破裂深度、脆度和韧性等4种质地特性。【结果】(1)不同规格、不同部位籽瓜果皮质地特性之间均存在差异,大型和中型籽瓜的果皮强度大于小型籽瓜;大型籽瓜的破裂深度大于其他2种规格籽瓜;瓜梗部和中上部籽瓜果皮强度和韧性高于其他部位。(2)通过对籽瓜不同部位果皮的各个质地特性试验值进行回归分析,得出籽瓜果皮强度、果皮脆度与部位之间满足高斯函数模型,果皮破裂深度、果皮韧性与部位之间满足多项式函数模型。(3)大型籽瓜果皮质地特性变异系数均大于其他2种规格的籽瓜,其变异系数分别为:果皮强度13.25%、破裂深度8.83%、果皮脆度16.26%、果皮韧性15.73%;而不同部位中,赤道部的果皮各质地特性的变异系数均最大。(4)相关性分析表明:籽瓜不同部位果皮各质地特性之间多呈显著正相关,呈显著负相关的相对较少。【结论】首次明确了籽瓜果皮质地特性的变化规律,可为籽瓜其他生物特性的研究及储藏保鲜提供理论依据。
[Purpose]To study the difference,variation degree and change law of the texture characteristics of different sizes and different parts of the seed melon peel.[Method]Three different specifications of seed melons peel of small,medium and large size were used as test materials.In displacement mode,the P/2 cylindrical probe was used to puncture the test samples of different parts of the seed melon peel to determine its hardness,fracture depth,brittleness and toughness.[Results](1)There were differences in the cortical characteristics of different sizes and different parts of the seed melon peel.The hardness of the large and medium seed melon were greater than small seed melon;the fracture depth of the large seed melon were greater than those of the other two types of melon;the strength and toughness of the stalk and middle and upper seed melon peel were generally higher than other parts.(2)Through regression analysis of the test values of various texture characteristics of different parts of the seed melon,it was concluded that the strength of the seed mel-on peel,the crispness of the peel and the position satisfied the Gaussian function model,the depth of the peel,the toughness of the peel and the position satisfied polynomial function model.(3)The coef-ficients of variation of the cortical characteristics of the large seed melon were larger than those of the other two specifications.The coefficients of variation were:peel strength 13.25%,rupture depth 8.83%,peel brittleness 16.26%,and peel toughness 15.73%.Among different parts,the coefficient of variation of each texture characteristic of the equatorial peel was the largest.(4)Correlation analysis showed that:the texture characteristics of different parts of the seed melon peels showed a significant positive correlation,and a significant negative correlation was relatively rare.[Conclusion]It is the first time to clarify the change rule of the cortical characteristics of seed melon peel,which can provide a theoretical basis for the study of other biological characteristics,storage and preservation of seed melon.
作者
王启慧
熊世磊
万芳新
黄晓鹏
WANG Qihui;XIONG Shilei;WAN Fangxin;HUANG Xiaopeng(College of Food Science and Engineering,Gansu Agricultural University,Lanzhou 730070,China;College of Mechanical and Electrical Engineering,Gansu Agricultural University,Lanzhou 730070,China)
出处
《云南农业大学学报（自然科学版）》
CAS
CSCD
北大核心
2021年第4期700-707,共8页
Journal of Yunnan Agricultural University:Natural Science
基金
国家自然科学基金项目(51765002)
甘肃农业大学SRTP项目(202006065)。
关键词
籽瓜果皮
规格
部位
穿刺
质地特性
seed melon peel
specifications
sites
puncture
texture characteristics
作者简介
王启慧(1999-),女,陕西宝鸡人,在读本科生,主要从事食品加工工艺研究工作。E-mail:1030018113@qq.com;通信作者:黄晓鹏(1975-),男,甘肃临洮人,博士,教授,主要从事农产品加工技术与装备研究工作。E-mail:huangxp@gsau.edu.cn。
