| 基于籽油理化特性及脂肪酸组成的白木通种质资源评价 |
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| 引用本文： | 李园园,陈松树,刘红昌＊,左宗明,罗培高,郑重.基于籽油理化特性及脂肪酸组成的白木通种质资源评价[J].中国油料作物学报,2020,42(5):843. |
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| 作者姓名： | 李园园 陈松树 刘红昌＊ 左宗明 罗培高 郑重 |
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| 作者单位： | 1. 贵州大学农学院，贵州贵阳，550025；2. 贵州大学教学实验场，贵州贵阳，550025；
3. 贵州省药用植物繁育与种植重点实验室，贵州贵阳，550025；4. 贵州柯康俐生物科技股份有限公司，贵州贵阳，550025；
5. 四川农业大学农学院，四川温江，611130；6. 成都市天地载生态农业有限公司四川成都，610000 |
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| 基金项目： | 基金项目：贵州省自然科学基金（基于CRISPR/Cas9系统靶向敲除三叶木通果实开裂相关基因的研究）（黔科合基础[2019] 1061号）；贵州省生
物学一流学科建设项目（GNYL [2017] 009）；江西中医药大学一流学科科研启动基金项目（Jxsylxk-zhya0028） |
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| 摘 要： | 筛选适宜油用的白木通种质，为将其开发成新型油料作物提供参考。利用索氏提取法提取白木通种子
籽油，比较各种质的含油率，按照食用油国家标准检测籽油过氧化值、酸价、碘值和皂化值，采用气质联用（GC-MS）
系统对白木通各种质籽油脂肪酸组成进行检测分析。研究结果表明，白木通各种质含油率（36.57%~43.08%）、单果
平均含籽率（6.60%~11.51%）、种子千粒重（45.63~58.95g）和折干率（51.93%~64.28%）等经济性状指标受环境因子
的影响较大；籽油的过氧化值（0.073~0.126 mmol/kg）、酸价（0.418~1.337 mgKOH/g）、碘值（83.548~89.653 g/100g）和
皂化值（199.485~221.418 mg/g）均符合四级食用油国家标准；籽油脂肪酸成分中大多数种类为饱和脂肪酸，但不饱
和脂肪酸的含量最高，不饱和脂肪酸以油酸和亚油酸为主，二者含量达到70%左右，饱和脂肪酸以棕榈酸和硬脂酸
为主，含量在25%左右。白木通具有开发成新型油料作物的潜力，综合评价种子经济性状及籽油脂肪酸构成，白木
通种质黔通1号在研究的5份种质中表现较好，值得进一步的开发利用。
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| 关 键 词： | 白木通 籽油 种质资源 脂肪酸 |
Evaluation for Akebia trifoliata（Thunb.）Koidz. var.
australis（Diels）Rehd. germplasm resources based on physicochemical
property and fatty acid components of seed oil |
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| LI Yuan-yuan,CHEN Song-shu,LIU Hong-chang,＊,ZUO Zong-ming,LUO Pei-gao,ZHENG Zhong.Evaluation for Akebia trifoliata（Thunb.）Koidz. var.
australis（Diels）Rehd. germplasm resources based on physicochemical
property and fatty acid components of seed oil[J].Chinese Journal of Oil Crop Sciences,2020,42(5):843. |
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| Authors: | LI Yuan-yuan CHEN Song-shu LIU Hong-chang ＊ ZUO Zong-ming LUO Pei-gao ZHENG Zhong |
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| Abstract: | Screening A. trifoliata（Thunb.）Koidz. var. australis（Diels）Rehd. germplasm suited for edible oil
so as to provide reference for developing new oil crop. Seed oil of A. trifoliata（Thunb.）Koidz. var. australis（Diels）
Rehd. germplasms was extracted by soxhlet extraction, and oil ratio among germplasms was compared. Peroxide val?
ue, acid value, iodine value and saponification value were detected according to national standard of edible oil,
meanwhile, seed oil fatty acid composition of A. trifoliata（Thunb.）Koidz. var. australis（Diels）Rehd. germplasms
was tested through GC-MS system. The results showed that economic characteristics of A. trifoliata （Thunb.）
Koidz. var. australis（Diels）Rehd. germplasm seed including oil ratio（36.57%~43.08%）, average seed content of
single fruit（6.60%~11.51%）, weight of 1000-seeds（45.63~58.95g） and drying rate（51.93%~64.28%） were
mainly affected by environmental factors. The peroxide value（0.073~0.126 mmol/kg）, acid value（0.418~1.337
mgKOH/g）, iodine value（83.548~89.653 g/100g）and saponification value（199.485~221.418 mg/g）reached the
national standard of grade 4 edible oil. Most components of seed fatty acid were saturated fatty acid, but the unsatu?
rated fatty acid content was the highest. Unsaturated fatty acid mainly included oleic acid and linoleic acid, which
accounted for ~70% in seed fatty acid; while saturated fatty acid mainly consists of palmitic acid and stearic acid,
about ~25% in seed fatty acid.A. trifoliata（Thunb.）Koidz. var. australis（Diels）Rehd. has the potential as new
type of oil crop. A. trifoliata（Thunb.）Koidz. var. australis（Diels）Rehd. germplasm Qiantong No.1 showed higher
value among 5 studied germplasms and could be further exploited based on its seed economic characteristics and
seed oil fatty acid composition. |
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| Keywords: | Akebia trifoliata（Thunb ）Koidz var australis（Diels）Rehd seed oil germplasm resources fatty acid |
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