中圖分類(lèi)號(hào):S532 文獻(xiàn)標(biāo)志碼:A 文章編號(hào):1001-4330(2025)05-1111-10
0 引言
【研究意義】馬鈴薯是繼水稻、小麥、玉米后的世界第四大糧菜兼用作物[1-3],且富含還原糖[4]淀粉[5]、維生素[]、蛋白質(zhì)[7]等營(yíng)養(yǎng)物質(zhì)。近年來(lái),我國(guó)新疆引進(jìn)馬鈴薯品種40余個(gè),包括皮卡蘇號(hào)、T2、卡爾吉娜號(hào)、T5、法扎博特號(hào)、T9、T10、拉希特2號(hào),晉薯14號(hào)、晉薯18號(hào)、同薯28號(hào)、晉薯23號(hào)、同薯23號(hào)和2191號(hào)等[8-10]。目前針對(duì)新疆馬鈴薯的研究主要集中在栽培、種薯脫毒以及抗旱、抗鹽堿品種的篩選上[11-12]。馬鈴薯精深加工產(chǎn)品較少,多以初級(jí)產(chǎn)品為主,較缺乏加工專(zhuān)用型品種,在一定程度上制約了馬鈴薯加工產(chǎn)業(yè)的發(fā)展[13-15]。因此,明確新疆馬鈴薯的品質(zhì)性狀對(duì)新疆馬鈴薯的加工、鮮食產(chǎn)業(yè)發(fā)展以及推廣種植具有重要意義。【前人研究進(jìn)展】馬鈴薯干物質(zhì)、淀粉和糖等營(yíng)養(yǎng)物質(zhì)的質(zhì)量分?jǐn)?shù)是其鮮食和加工品質(zhì)的重要理化指標(biāo)[16]。通常情況下,炸薯片的干物質(zhì)質(zhì)量分?jǐn)?shù)優(yōu)選在 22% ~24% ,質(zhì)量分?jǐn)?shù)較高會(huì)導(dǎo)致產(chǎn)品太脆,反之,則會(huì)導(dǎo)致吸油率過(guò)高;最適合烹飪的馬鈴薯干物質(zhì)質(zhì)量分?jǐn)?shù)應(yīng)較低,約為 17% 和 19% ,因?yàn)橘|(zhì)量分?jǐn)?shù)較高的塊莖烹飪時(shí)更易碰傷和分解;對(duì)于薯片加工行業(yè),還原糖質(zhì)量分?jǐn)?shù)應(yīng)不超過(guò)鮮重的 0.2% 和 0.3% ,以避免油炸時(shí)生成丙烯酰胺以及產(chǎn)品味道苦的情況[17-19]?!颈狙芯壳腥朦c(diǎn)】雖然前人已有一些關(guān)于馬鈴薯品質(zhì)性狀的評(píng)價(jià)研究,但是針對(duì)新疆產(chǎn)區(qū)不同品種馬鈴薯進(jìn)行綜合分析比較的研究鮮有報(bào)道?!緮M解決的關(guān)鍵問(wèn)題】收集新疆綜合性狀良好的43個(gè)馬鈴薯種植品種,測(cè)定其干物質(zhì)、淀粉和糖等指標(biāo)并綜合分析,分析新疆地區(qū)不同品種馬鈴薯的品質(zhì)性狀,為新疆馬鈴薯鮮食和加工品種的資源利用提供參考依據(jù)。
1 材料與方法
1.1材料
1.1. 1 馬鈴薯
選擇馬鈴薯品種共43個(gè),其中6個(gè)品種采自新疆喀什地區(qū)葉城縣,其余37個(gè)品種采自新疆伊犁哈薩克自治州昭蘇縣。收集樣本均為當(dāng)?shù)胤N植廣泛、綜合性狀優(yōu)良、具有推廣潛力成熟度一致的馬鈴薯品種。將采集好一部分清洗干凈后勻漿凍藏,另一部分切片后進(jìn)行真空冷凍干燥處理,干燥后的樣品磨成粉末裝入棕色玻璃瓶中,用封口膜封口置于 -18°C 的冰箱中進(jìn)行凍藏。表1
表1 不同品種馬鈴薯名稱(chēng)及產(chǎn)區(qū)信息
Tab.1 Names of different varieties of potatoes and information on production areas
1. 1.2 試劑
馬鈴薯直鏈淀粉、支鏈淀粉標(biāo)準(zhǔn)溶液(型號(hào):BW1750-100mL ,上海潔萬(wàn)佳生物科技有限公司);碘化鉀、碘、氫氧化鉀、乙酸、無(wú)水乙醇(分析純,上海麥克林生化科技股份有限公司);苯酚(分析純,天津市風(fēng)船化學(xué)試劑科技有限公司);蔗糖(分析純),硫酸(分析純,成都市科隆化學(xué)品有限公司)。
1.1.3 儀器與設(shè)備
UV-2700型紫外可見(jiàn)分光光度計(jì)(日本島津公司);SCIENTZ-50F/A型真空冷凍干燥機(jī)(寧波新芝凍干設(shè)備股份有限公司);XSE204型電子天平(精度0.0001,瑞士Mettler公司);HHS型恒溫水浴鍋(上海博迅實(shí)業(yè)有限公司);數(shù)顯測(cè)糖儀PAL-1(精度 ±0.2% ,日本愛(ài)拓科技有限公司)。
1.2 方法
可溶性糖質(zhì)量分?jǐn)?shù):參照曹建康等[20]《果蔬采后生理生化實(shí)驗(yàn)指導(dǎo)》中的苯酚-硫酸法??扇苄怨绦挝镔|(zhì)量分?jǐn)?shù):使用手持?jǐn)?shù)顯糖度計(jì)測(cè)定。干物質(zhì)質(zhì)量分?jǐn)?shù):參照GB5009.3-2016《食品中水分的測(cè)定》測(cè)定水分后計(jì)算出干物質(zhì)質(zhì)量分?jǐn)?shù)。直鏈淀粉和支鏈淀粉質(zhì)量分?jǐn)?shù):參照王麗等[21]優(yōu)化后的雙波長(zhǎng)測(cè)定法??偟矸蹫橹辨湹矸叟c支鏈淀粉之和。所有指標(biāo)測(cè)定均重復(fù)3次。
1.3 數(shù)據(jù)處理
采用Excel2016記錄和整理數(shù)據(jù),SPSS26.0軟件進(jìn)行差異顯著性、主成分、相關(guān)性和聚類(lèi)分析并用GraphPad.Prism.9.5.CN繪圖。
2 結(jié)果與分析
2.1 馬鈴薯品質(zhì)性狀評(píng)價(jià)
研究表明,不同品種的馬鈴薯品質(zhì)性狀變異系數(shù)表現(xiàn)為干物質(zhì)質(zhì)量分?jǐn)?shù) gt; 支鏈淀粉質(zhì)量分?jǐn)?shù)gt; 總淀粉質(zhì)量分?jǐn)?shù) gt; 直鏈淀粉質(zhì)量分?jǐn)?shù) gt; 可溶性固形物 gt; 可溶性糖質(zhì)量分?jǐn)?shù)。其中,干物質(zhì)質(zhì)量分?jǐn)?shù)和支鏈淀粉質(zhì)量分?jǐn)?shù)的變異系數(shù)較大,分別為 11.08% 和 10.46% ,而可溶性糖質(zhì)量分?jǐn)?shù)、可溶性固形物的變異系數(shù)較小,均小于 4% 。各品質(zhì)性狀之間的變異系數(shù)差異較大??衫酶晌镔|(zhì)、支鏈淀粉在品種間的較大差異,通過(guò)馴化等相關(guān)技術(shù)措施提高馬鈴薯的綜合營(yíng)養(yǎng)品質(zhì),篩選出種質(zhì)表現(xiàn)較優(yōu)的馬鈴薯。表2
2. 1.1 可溶性糖質(zhì)量分?jǐn)?shù)
研究表明,43個(gè)馬鈴薯品種的可溶性糖質(zhì)量分?jǐn)?shù)在 0.55%~2.84% ,平均值為 1.6% ,變異系數(shù)為 1.15% 。其中,隴薯6號(hào)可溶性糖質(zhì)量分?jǐn)?shù)較高,為 2.84% ,與T10、臨薯18號(hào)無(wú)顯著差異,與其余品種間差異顯著( Plt;0.05 )??扇苄蕴琴|(zhì)量分?jǐn)?shù)高于 2% 的品種有北方001號(hào)、墾薯1號(hào)、東農(nóng)310號(hào)、實(shí)驗(yàn)一、 $. \mathrm { T } 1 0 \ 、 \mathrm { L y } 1 5 2 0 \_ 9$ 、隴薯6號(hào)、臨薯18號(hào)、麗薯29號(hào)和 v7 。其中,隴薯6號(hào)和臨薯18號(hào)可溶性糖質(zhì)量分?jǐn)?shù)分別達(dá) 2.84% 和2.73% ??扇苄蕴琴|(zhì)量分?jǐn)?shù)較低的品種有中薯早45號(hào)、隴薯3號(hào)、中薯27號(hào)、隴薯26號(hào)和希森6號(hào),可溶性糖質(zhì)量分?jǐn)?shù)均小于 1% 。圖1
2.1.2 可溶性固形物
研究表明,43個(gè)馬鈴薯品種的可溶性固形物質(zhì)量分?jǐn)?shù)在 4.3%~9.43% ,平均值為 6.84% ,變異系數(shù)為 3.61% 。其中,中薯早45號(hào)可溶性固形物質(zhì)量分?jǐn)?shù)較高,為 9.43% ,與中薯27號(hào)、國(guó)紅無(wú)顯著差異,與其余品種間差異顯著??扇苄怨绦挝镔|(zhì)量分?jǐn)?shù)高于 8% 的品種有中薯早45號(hào)、中紅3號(hào)、中薯紫5號(hào)、中薯早35號(hào)、中薯27號(hào)、國(guó)紅、龍薯26號(hào)、麗薯29號(hào)和V7??扇苄怨绦挝镔|(zhì)量分?jǐn)?shù)較低的品種有北方001號(hào)、T10、L1631-14、沃土5號(hào),可溶性固形物質(zhì)量分?jǐn)?shù)均小于5% 。圖2
2.1.3 干物質(zhì)質(zhì)量分?jǐn)?shù)
研究表明,43個(gè)馬鈴薯品種的干物質(zhì)質(zhì)量分?jǐn)?shù)在 11.66%~31.97% ,平均值為 22.23% ,變異系數(shù)為 11.08% 。其中,東農(nóng)310號(hào)干物質(zhì)質(zhì)量分?jǐn)?shù)較高,為 31.97% ,與其余品種間存在顯著差異 Plt;0.05) 。有14個(gè)馬鈴薯品種的干物質(zhì)質(zhì)量分?jǐn)?shù)在 24% 以上。干物質(zhì)質(zhì)量分?jǐn)?shù)較高的品種有墾薯1號(hào)、東農(nóng)310號(hào)、中薯27號(hào)、實(shí)驗(yàn)一和天薯16號(hào);干物質(zhì)質(zhì)量分?jǐn)?shù)較低的品種有Ly1520-9、黃金薯、滕育1號(hào)和費(fèi)烏瑞它。圖3
2.1.4 直鏈淀粉質(zhì)量分?jǐn)?shù)
研究表明,43個(gè)馬鈴薯品種的直鏈淀粉質(zhì)量分?jǐn)?shù)在 18.36%~29.79% ,平均值為 25.47% ,變異系數(shù)為 5.52% 。其中,麗薯29號(hào)、北方001號(hào)、北方016號(hào)、XN5直鏈淀粉質(zhì)量分?jǐn)?shù)較高,分別為29.79%.29.02%.28.8% 和 28.63% ,與其余品種間差異顯著( Plt;0.05, 。直鏈淀粉質(zhì)量分?jǐn)?shù)較高的品種有北方013號(hào)、北方001號(hào)、中紅3號(hào)、北方016號(hào)、晉同薯3號(hào)、國(guó)紅、XN5、北方015號(hào)和麗薯29號(hào),均在 28% 以上;直鏈淀粉質(zhì)量分?jǐn)?shù)較低的品種有大豐12號(hào)、Ly1520-9、臨薯18號(hào)和黃金薯,均在 21% 以下。圖4
2.1.5 支鏈淀粉質(zhì)量分?jǐn)?shù)
研究表明,43個(gè)馬鈴薯品種的支鏈淀粉質(zhì)量分?jǐn)?shù)在 46.23%~70.27% ,平均值為 63.92% ,變異系數(shù)為 10.46% 。其中,隴薯3號(hào)支鏈淀粉質(zhì)量分?jǐn)?shù)較高,為 70.27% ,與秦薯107號(hào)、大豐12號(hào)、北方016號(hào)、T5、T10、Ly1520-9、臨薯18號(hào)、黃金薯、滕育1號(hào)和希森6號(hào)存在顯著差異( Plt; 0.05),與其余品種間無(wú)顯著差異。支鏈淀粉質(zhì)量分?jǐn)?shù)較高的品種有蒙烏薯4號(hào)、中薯32號(hào)、隴薯25號(hào)、中薯紫5號(hào)、東農(nóng)310號(hào)、隴薯3號(hào)、龍薯26號(hào)和天薯16號(hào),均在 67% 以上;支鏈淀粉質(zhì)量分?jǐn)?shù)較低的品種有大豐12號(hào)、北方016號(hào)、T5、Ly1520-9、臨薯18號(hào)、黃金薯、滕育1號(hào)和希森6號(hào),均在 60% 以下。圖5
2. 1.6 總淀粉質(zhì)量分?jǐn)?shù)
研究表明,43個(gè)馬鈴薯品種的總淀粉質(zhì)量分?jǐn)?shù)在 64.59%~96.43% ,平均值為 89.39% ,變異系數(shù)為 7.3% 。其中,麗薯29號(hào)直鏈淀粉質(zhì)量分?jǐn)?shù)較高,為 96.43% ,與大豐12號(hào)、Ly1520-9、臨薯18號(hào)、黃金薯、滕育1號(hào)存在顯著差異( Plt; 0.05),與其余品種間無(wú)顯著差異??偟矸圪|(zhì)量分?jǐn)?shù)較高的品種有蒙烏薯4號(hào)、北方013號(hào)、北方001號(hào)、中紅3號(hào)、晉同薯3號(hào)、隴薯3號(hào)、XN5、龍薯26號(hào)、麗薯29號(hào)、天薯16號(hào)和費(fèi)烏瑞它,均在94% 以上;總淀粉質(zhì)量分?jǐn)?shù)較低的品種有大豐12號(hào)、中薯早35號(hào)、Ly1520-9、臨薯18號(hào)、黃金薯和滕育1號(hào),均在 84% 以下。圖6
表2 不同馬鈴薯品種塊莖品質(zhì)的描述性統(tǒng)計(jì)
Tab.2 Descriptivestatisticsoftuberqualityofdifferentpotatovarieties
注:不同小寫(xiě)字母代表差異顯著( Plt;0.05 ,下同
圖1不同馬鈴薯品種可溶性糖質(zhì)量分?jǐn)?shù)的差異性
Notes:Different lowercaselettersrepresent significant differences( Plt;0.05 ),thesameasbelow ig. 2Histogram of the difference in soluble solids content of different potato varie
Fig.1Histogram of differences in soluble sugar content of different potato varieti
圖2 不同馬鈴薯品種可溶性固形物質(zhì)量分?jǐn)?shù)的差異性
圖3 不同馬鈴薯品種干物質(zhì)質(zhì)量分?jǐn)?shù)的差異性
Fig.3 Histogram of the difference in drymatter contentof different potatovarieties
Fig. 4Histogram of the difference in amylose content of different potato varieties
圖5 不同馬鈴薯品種支鏈淀粉質(zhì)量分?jǐn)?shù)的差異性
圖4不同馬鈴薯品種直鏈淀粉質(zhì)量分?jǐn)?shù)的差異性
Fig.5Histogram of differencesin amylopectin content of different potato varieties
圖6 不同馬鈴薯品種總淀粉質(zhì)量分?jǐn)?shù)的差異性
Fig.6 Histogram of the difference in total starch content of different potato varieties
2.2 馬鈴薯各品質(zhì)性狀的相關(guān)性
研究表明,總淀粉質(zhì)量分?jǐn)?shù)與支鏈淀粉質(zhì)量分?jǐn)?shù)呈極顯著正相關(guān)( ),相關(guān)系數(shù)為0.936;總淀粉質(zhì)量分?jǐn)?shù)與直鏈淀粉質(zhì)量分?jǐn)?shù)呈極顯著正相關(guān)( Plt;0.01 ),相關(guān)系數(shù)為0.743??偟矸圪|(zhì)量分?jǐn)?shù)和干物質(zhì)質(zhì)量分?jǐn)?shù)呈顯著正相關(guān)( P
),相關(guān)系數(shù)為0.381。總淀粉質(zhì)量分?jǐn)?shù)與可溶性固形物質(zhì)量分?jǐn)?shù)呈正相關(guān),與可溶性糖質(zhì)量分?jǐn)?shù)呈負(fù)相關(guān),但相關(guān)性不顯著。表3
Tab.3 Correlationoftuberqualityamongdifferentpotatovarieties
注:*表示 Plt;0.05 ,相關(guān)性顯著,**表示 Plt;0.01 ,相關(guān)性極顯著 Notes:*indicates Plt;0.05 ,with significant correlation,and**indicates Plt;0.01 ,withextremely significant correlation
2.3 馬鈴薯品質(zhì)性狀的主成分
研究表明,前2個(gè)因子趨勢(shì)較陡,而第3個(gè)因子開(kāi)始變平緩,因此前2個(gè)因子可作為主要因子。前兩個(gè)主成分的累積貢獻(xiàn)率達(dá) 58.972% ,特征值均大于1,因此,可選取前2個(gè)因子作為馬鈴薯品質(zhì)的綜合評(píng)價(jià)指標(biāo)。第一主成分( PC1 )特征值為1.919,貢獻(xiàn)率為 38.371% ;第二主成分( PC2 )特征值為1.030,貢獻(xiàn)率為 20.601% 。表4,圖7
圖7 馬鈴薯品種營(yíng)養(yǎng)品質(zhì)因子 Fig.7 Gravel diagram of nutrient quality factoranalysisofpotatovarieties
表3 不同馬鈴薯品種塊莖品質(zhì)的相關(guān)性
表4主成分特征值和貢獻(xiàn)率
Tab.4 Eigenvaluesandcontributionrates ofprincipal components
2.4 馬鈴薯品質(zhì)性狀的聚類(lèi)
研究表明,當(dāng)歐氏距離為15時(shí),可將43個(gè)馬鈴薯品種分為3個(gè)類(lèi)群。第I類(lèi)群包括T10、北方001號(hào)、臨薯18號(hào)和隴薯6號(hào)在內(nèi)的4個(gè)品種,主要表現(xiàn)為較高的可溶性糖質(zhì)量分?jǐn)?shù)和適中的直鏈淀粉質(zhì)量分?jǐn)?shù),而可溶性固形物質(zhì)量分?jǐn)?shù)、干物質(zhì)質(zhì)量分?jǐn)?shù)、支鏈淀粉質(zhì)量分?jǐn)?shù)和總淀粉質(zhì)量分?jǐn)?shù)較低;第Ⅱ類(lèi)群包括秦薯107號(hào)、蒙烏薯4號(hào)、中薯32號(hào)、秦彩薯1號(hào)、北方013號(hào)、大豐12號(hào)、中紅3號(hào)、北方016號(hào)、中薯紫5號(hào)、中薯566號(hào)、晉同薯3號(hào)、Ly1520-9、維拉斯、墾薯1號(hào)、東農(nóng)310號(hào)、隴薯3號(hào)、實(shí)驗(yàn)一、國(guó)紅、T5、T9、XN5、大豐3號(hào)、v7、黃金薯、北方015號(hào)、希森6號(hào)、費(fèi)烏瑞它、沃土5號(hào)、L1631-14和麗薯29號(hào)在內(nèi)的30個(gè)馬鈴薯品種,主要表現(xiàn)為較高的直鏈淀粉質(zhì)量分?jǐn)?shù),而可溶性糖質(zhì)量分?jǐn)?shù)、可溶性固形物質(zhì)量分?jǐn)?shù)、干物質(zhì)質(zhì)量分?jǐn)?shù)、支鏈淀粉質(zhì)量分?jǐn)?shù)和總淀粉質(zhì)量分?jǐn)?shù)適中;第Ⅱ類(lèi)群包括中薯早39號(hào)、天薯16號(hào)、隴薯25號(hào)、L14140-5、滕育1號(hào)、中薯早35號(hào)、中薯早45號(hào)、中薯27號(hào)和龍薯26號(hào)在內(nèi)的9種,主要表現(xiàn)為較高的可溶性固形物質(zhì)量分?jǐn)?shù)、干物質(zhì)質(zhì)量分?jǐn)?shù)、支鏈淀粉質(zhì)量分?jǐn)?shù)和總淀粉質(zhì)量分?jǐn)?shù),而可溶性糖質(zhì)量分?jǐn)?shù)和直鏈淀粉質(zhì)量分?jǐn)?shù)較低。表5,圖8
3討論
3.1馬鈴薯塊莖的可溶性糖、可溶性固形物、干物質(zhì)、直鏈淀粉、支鏈淀粉和總淀粉質(zhì)量分?jǐn)?shù)是馬鈴薯的重要品質(zhì)性狀,會(huì)影響相關(guān)產(chǎn)品的加工質(zhì)量。沈洪飛等20研究表明,新疆馬鈴薯干物質(zhì)質(zhì)量分?jǐn)?shù)較高在 16.95%~24.95% 。研究結(jié)果顯示,不同馬鈴薯品種之間的品質(zhì)性狀差異顯著,干物質(zhì)質(zhì)量分?jǐn)?shù)在 11.66%~31.97% ,總體偏高,表明新疆現(xiàn)有的馬鈴薯干物質(zhì)質(zhì)量分?jǐn)?shù)較高品種呈增長(zhǎng)趨勢(shì),出現(xiàn)這種情況可能是干物質(zhì)質(zhì)量分?jǐn)?shù)高的品種產(chǎn)出較高,種植推廣較多。通常情況下,油炸食品的干物質(zhì)質(zhì)量分?jǐn)?shù)要求在 22% ~25%[22]",研究的43個(gè)馬鈴薯品種中,北方001號(hào)、中薯早39號(hào)、中薯早45號(hào)等13個(gè)品種干物質(zhì)質(zhì)量分?jǐn)?shù)在此范圍內(nèi),適用于加工馬鈴薯油炸產(chǎn)品,而其余品種不適用于加工油炸產(chǎn)品。郭楠等[23]研究也表明,馬鈴薯干物質(zhì)質(zhì)量分?jǐn)?shù)高于20% 適用于油炸類(lèi)產(chǎn)品。楊炳南等[24研究表明,可溶性糖質(zhì)量分?jǐn)?shù)高的馬鈴薯適用于鮮食,在研究中有L1631-14、希森6號(hào)、隴薯6號(hào)、晉同薯3號(hào)、臨薯18號(hào)、中薯32號(hào)等22個(gè)品種適用于鮮食,可溶性糖質(zhì)量分?jǐn)?shù)均在平均值 1.6% 以上。馬鈴薯直鏈淀粉與支鏈淀粉質(zhì)量分?jǐn)?shù)的高低可以影響淀粉加工的品質(zhì),直鏈淀粉質(zhì)量分?jǐn)?shù)較高,其糊化溫度也較高;而支鏈淀粉質(zhì)量分?jǐn)?shù)較高,其峰值的黏度和崩解值較高25]。研究中有秦薯107號(hào)、蒙烏薯4號(hào)、中薯32號(hào)、秦彩薯1號(hào)、北方013號(hào)、北方001號(hào)等20個(gè)品種的直鏈淀粉和支鏈淀粉質(zhì)量分?jǐn)?shù)均較高,均在平均值 25.47% 和63.92% 以上。
圖8 不同馬鈴薯品種的聚類(lèi)Fig.8 Clusteranalysisofdifferentpotatovarieties
表5 不同類(lèi)別馬鈴薯品質(zhì)性狀
Tab.5 Qualitytraitsofdifferenttypesofpotatoes
3.2試驗(yàn)研究將43個(gè)馬鈴薯品種分為3類(lèi)。其中,第I類(lèi)主要表現(xiàn)為較高的可溶性糖質(zhì)量分?jǐn)?shù)和適中的直鏈淀粉質(zhì)量分?jǐn)?shù);第Ⅱ類(lèi)主要表現(xiàn)為較高的直鏈淀粉質(zhì)量分?jǐn)?shù);第II類(lèi)主要表現(xiàn)為較高的可溶性固形物質(zhì)量分?jǐn)?shù)、干物質(zhì)質(zhì)量分?jǐn)?shù)、支鏈淀粉質(zhì)量分?jǐn)?shù)和總淀粉質(zhì)量分?jǐn)?shù)。各類(lèi)群均有其各自的優(yōu)勢(shì)性狀,第三類(lèi)群綜合品質(zhì)較優(yōu)。由此可見(jiàn),馬鈴薯用途涵蓋較為全面,用于鮮食和加工的品種量多而且表現(xiàn)出的品質(zhì)性狀也較優(yōu)。但試驗(yàn)未能將不同馬鈴薯品種的感官和加工試驗(yàn)與營(yíng)養(yǎng)品質(zhì)相結(jié)合進(jìn)行,后續(xù)將進(jìn)一步系統(tǒng)深入研究。
4結(jié)論
新疆昭蘇產(chǎn)區(qū)的馬鈴薯可溶性糖、可溶性固形物、干物質(zhì)和直鏈淀粉總體水平較高,綜合品質(zhì)優(yōu)于葉城產(chǎn)區(qū)的馬鈴薯。北方001、中薯早39、中薯早45、中薯紫5、維拉斯、隴薯3號(hào)、國(guó)紅、T9、龍薯 26,L1631-14 、麗薯29、大豐3、希森6號(hào),13個(gè)品種適用于加工油炸食品,干物質(zhì)質(zhì)量分?jǐn)?shù)在22%~25% 。L1631-14、希森6號(hào)、隴薯6號(hào)、晉同薯3號(hào)、臨薯18號(hào)和中薯32號(hào)等22個(gè)品種適用于鮮食,可溶性糖質(zhì)量分?jǐn)?shù)高于 1.6% 。43個(gè)馬鈴薯品種歸為3個(gè)類(lèi)群,第Ⅱ類(lèi)的多個(gè)品質(zhì)性狀相比其他品種較優(yōu),可作為推廣種植的依據(jù)。
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Analysis and evaluation of potato quality traits of different potato varieties in Xinjiang
FAN Depeng12,CHEN Yupeng12,SHI Jie12,JU Yanjun2, XING Binde3, JIANG Yinghong3, LIU Yi3 , ZHAO Duoyong2
(1. College of Food Sciences and Pharmacy, Xinjiang Agricultural University, Urumqi 830052, China; 2. Laboratory of Quality amp; Safety Risk Asessment for Agro -Products( Urumqi),Ministryof Agriculture and Rural Affirs/Xinjiang Key Laboratory of Agro-Products Quality and Safety/ Institute of Quality Standards and Testing Technology Research Institute, Xinjiang Uyghur Autonomous Region Academy of Agricultural Sciences, Urumqi 830o91, China;3.Comprehensive Experimental Site of Xinjiang Academy of Agricultural Sciences,Urumqi 830012,China)
Abstract:【Objective】 The main quality traits of diffrent potato varieties in Xinjiang were studied to provide reference for the resourceutilization of fresh and processed potato varieties in Xinjiang in the future. 【Methods】Forty -three potato varieties with good comprehensive traits were collected from Xinjiang,and he indexesofdry matter,starch and soluble sugar were determined.Thequality traits of diferent potato varieties were analyzed by corelation analysis,principal component analysis and cluster analysis.【Results】The soluble sugar content of 43 potato varieties was (1.6±0.54)% . The mass fraction of soluble solids was ( ?6.84± 1.7)% . The dry matter mass fraction was (22,23±5.21)% . The mass fraction of amylose was (25.47± (204號(hào) (2號(hào) 2.59)% .The mass fraction of amylopectin was (63.92±4.92)% .The total starch content was ( 89.39± (2號(hào) 6.53)% . Total starch content was significantly positively correlated with amylopectin content ( Plt;0.01 )and amylose content (Plt;0.01 ),but negatively correlated with soluble sugar content. Cluster analysis divided the 43 potato species into three groups.Group I,including T1O and Beifang OO1,was characterized by higher soluble sugar content. Group II,including Qingshu 107 and Mengwushu 4,exhibited higher amylose content. Group II,including Zhongshuzao 39 and Tianshu 16,showed higher soluble solid content,dry matter content,amylopectin content,and total starch content.【Conclusion】Potatoes from the Zhaosu production area generally exhibit higher levels of soluble sugars,soluble solids,dry mater,and amylose,with overall quality superior to those from the Yecheng production area. Thirteen varieties,including Beifang OO1, Zhongshuzao 39,Zhongshuzao 45,Zhongshu Zi5,Weilasi,Longshu 3,Guohong,T9,Longshu 26,L1631-14,Lishu 29,Dafeng 3,Xisen 6,are suitable for processing fried food.Twenty two varieties,including L1631-14, Xisen 6,Longshu 6,Jintongshu 3,Linshu 18 and Zhongshu 32,are suitable for fresh food,with soluble sugar content higher than 1.6% . The 43 potato species are classified into three groups,with multiple quality traits in Group II being superior to those in other groups,which provides abasis for their promotion and cultivation.
Key words:potato;variety;quality evaluation;starch; cluster analysis