不同品种菠萝果皮穿刺力学特性研究  

Study on mechanical properties of skin penetration for different pineapple varieties

作　　者：潘睿 薛忠 李海亮[4,5] 肖景丰 Pan Rui;Xue Zhong;Li Hailiang;Xiao Jingfeng(Institute of Agricultural Machinery,Chinese Academy of Tropical Agricultural Sciences,Zhan Jiang 524091,China;Ministry of Agriculture Key Laboratory of Agricultural Equipment for Tropical Crops,Zhanjiang 524091,China;Ministry of Agriculture Key Laboratory of Tropical Fruit Biology,Zhanjiang 524091,China;South Subtropical Craps Research In-stitute,Chinese Academy of Tropical Agricultural Sciences,Zhanjiang 524091,China;College of Mechanical and Electri-cal Engineering,Henan Agricultural University,Zhengzhou 450002,China)

机构地区：[1]中国热带农业科学院农业机械研究所,广东湛江524091 [2]农业农村部热带作物农业装备重点实验室,广东湛江524091 [3]农业农村部热带果树生物学重点实验室,广东湛江524091 [4]中国热带农业科学院南亚热带作物研究所,广东湛江524091 [5]河南农业大学机电工程学院,河南郑州450002

出　　处：《山西农业大学学报（自然科学版）》2023年第4期86-95,共10页Journal of Shanxi Agricultural University(Natural Science Edition)

基　　金：海南省自然科学基金(323QN283);“十四五”广东省农业科技创新十大主攻方向“揭榜挂帅”项目(2022SDZG03-06);海南省重点研发项目(ZDYF2023NYLY058);中央公益性科研院所基本业务费“揭榜挂帅”项目(1630062022005);国家重点研发项目(2020YFD1000605);中国热带农业科学院基本科研业务费专项资金“热带农业工程科技创新团队”(19CXTD-31)。

摘　　要：[目的]为探究不同品种、不同果眼位置的菠萝果皮抗穿刺损伤性能,以‘巴厘’、‘金菠萝(MD2)’、‘甜蜜蜜(台农16号)’、‘金钻(台农17号)’4种菠萝为研究对象进行穿刺特性试验。[方法]选取样品菠萝赤道线处A(果眼中心)、B(2个果眼之间)、C(果眼边)、D(3个果眼交界点)、E(4个果眼交界边)为穿刺点位,基于WSW50E微机控制电子万能试验机取得力时间穿刺曲线,分析得出果皮硬度;分析穿刺探头穿透果皮的加载深度从而计算平均果皮破裂深度;绘制果皮应力σ(Mpa)应变ε(%)曲线,拟合曲线计算果皮韧性以及不同穿刺点位的弹性模量。通过相关性分析明确品种与穿刺点位对菠萝穿刺力学性能的影响。[结果]不同品种菠萝果皮硬度F大小排序均为A>C>B>D>E,品种不同和穿刺部位不同对果皮硬度的影响均显著。果皮韧性变化规律与果皮破裂深度在穿刺不同点位时规律一致,但品种不同导致排序顺序不同,其中‘巴厘’排序均为A>C>D>B>E;‘金菠萝’排序均为A>C>D>E>B;‘金钻’排序均为A>C>D>B>E;‘甜蜜蜜’排序均为A>E>C>D>B。‘巴厘’果皮弹性模量区间为0.0107~0.0138 Mpa;‘金菠萝’果皮弹性模量区间为0.0140~0.0156 Mpa;‘金钻’果皮弹性模量区间为0.0103~0.0134 Mpa;‘甜蜜蜜’果皮弹性模量区间为0.0102~0.0148 Mpa,4种菠萝不同穿刺点位弹性模量大小与其果皮破裂深度/果皮韧性排序相反。相关性分析结果表明,‘金菠萝’对果皮破裂深度影响呈极显著(P<0.01),其它品种不显著;E点对果皮破裂深度呈显著性影响(P<0.05),其它穿刺点位不显著;‘巴厘’对果皮韧性影响呈极显著(P<0.01),‘甜蜜蜜’对果皮韧性呈显著性影响(P<0.05),其它品种不显著;E点对果皮韧性影响均呈极显著(P<0.01),C点对果皮韧性呈显著性影响(P<0.05),其它穿刺点位不显著。[结论]本研究揭示了菠萝果皮不同穿刺点位生物力学特性具有各[Objective]This study aimed to explore the resistance to puncture damage of pineapple skin for different varieties and different eye positions on the fruit.Four pineapple varieties,Bali,Golden Pineapple(MD2),Tianmimi(Tainong No.16),and Jinzuan(Tainong No.17),were selected for puncture tests to investigate their characteristics.[Method]Puncture tests were conducted on the equator line of pineapple samples at position A(center of the eye),B(between two eyes),C(edge of the eye),D(intersection of three eyes),and E(interaction of four eyes).Force-time puncture curves were obtained using a WSW-50E microcomputer-controlled electronic universal testing machine to analyze fruit skin hardness.The penetration depth of the puncture probe was analyzed to calculate the average skin rupture depth.Stress(σ,Mpa)-strain(ε,%)curves of the fruit skin were plotted,and the curves were fitted to calculate the peel toughness and elastic modulus at different puncture points.Correlation analysis was used to determine the effects of variety and puncture position on the mechanical properties of pineapple puncture.[Result]The test results showed that the order of pineapple skin hardness F for different varieties was A>C>B>D>E,and the effects of different varieties and puncture sites on the fruit skin hardness were significant.The change in skin toughness followed the same pattern as the skin rupture depth for different puncture points,but the order varied due to different varieties.The order for"Bali"was A>C>D>B>E,for"Golden Pineapple"was A>C>D>E>B,for"Jinzuan"was A>C>D>B>E,and for"Tianmimi"was A>E>C>D>B.The elastic modulus range of"Bali"pineapple skin was 0.0107 to 0.0138 Mpa,the"Golden Pineapple"was 0.014 to 0.0156 Mpa,and“Tianmimi”was 0.0102 to 0.0148 Mpa.The elastic modulus at different puncture points for the four pineapple varieties was opposite to the order of peel rupture depth/peel toughness.Correlation analysis results showed that"Golden Pineapple"significantly affected skin rupture depth(P<0.01);E point had a significant eff

关 键 词：菠萝果皮 穿刺试验 生物力学特性 穿刺点位 

分 类 号：S313[农业科学—作物栽培与耕作技术]