Crops ›› 2022, Vol. 38 ›› Issue (3): 200-204.doi: 10.16035/j.issn.1001-7283.2022.03.029

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Analysis of Traits, Texture, Nutrional Quality, and Antioxygenation of Friut from Five Different Okra (Abelmoschus esculentus L.) Cultivars

Wang Jiyue1,2(), Liu Zhenghong1, Jiang Lian1, Bai Yu2, Zhang Ting2, Liu Yan1,2, Shi Denghong1,2()   

  1. 1School of Biological and Environmental Engineering, Guiyang University, Guiyang 550005, Guizhou, China
    2Guizhou Provincial Key Laboratory for Rare Animal and Economic Insect of the Mountainous Region, Guiyang University, Guiyang 550005, Guizhou, China
  • Received:2021-03-31 Revised:2021-05-08 Online:2022-06-15 Published:2022-06-20
  • Contact: Shi Denghong E-mail:aute2803764@163.com;281487194@qq.com

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Abstract:

Okra friut is edible and therapeutic, and it has been used to make health-care meals and treat a variety of illnesses. The traits, texture parameters (hardness, gumminess, springiness, cohesion, chewiness, resilience), nutrional quality indexes (total sugar, reducing sugar, free amino acids, protein, vitamin C and crude fibre), and antioxidant capacity of fruit were compared in this study between five different okra cultivars, namely Cary, Hongqiukui, Yangguifei, Lübai No.1, and Xianzhi. The results revealed that the fruit of Lübai No.1 had the best overall performance in all metrics, making it a valuable cultivar for okra quality breeding.

Key words: Okra (Abelmoschus esculentus L.) fruit, Texture, Nutritional quality, Antioxygenation

Table 1

Agronomic traits comparison of okra fruit"

品种
Cultivar		 长度
Length (cm)		 横径
Diameter (cm)		 单果重
Weight of each pod (g)		 果棱数
Sides		 果实颜色
Fruit color
咔里巴Cary 9.04b 2.41a 15.91a 5c 绿色
红秋葵Hongqiukui 9.21b 2.58a 16.37a 8a 深红色
杨贵妃Yangguifei 9.36ab 2.68a 16.91a 5c 绿色
绿白一号Lübai No.1 8.71c 1.91b 12.47b 5c 绿白色
纤指Xianzhi 9.51a 1.71b 12.86b 7b 绿色

Table 2

Texture parameters comparison of okra fruit"

品种
Cultivar		 硬度
Hardness (g/cm2)		 回复性
Resilence (%)		 凝聚性
Cohesion		 弹性
Springiness (%)		 黏着性
Gumminess		 咀嚼性
Chewiness
咔里巴Cary 22 524.58bB 21.48cB 0.50bB 87.25aA 12 107.13cB 10 366.38cC
红秋葵Hongqiukui 14 756.55dC 20.59cB 0.40cC 70.07cC 6 596.46dC 45 97.66dD
杨贵妃Yangguifei 20 111.64cB 26.71bB 0.54bB 77.44bB 12 753.93bB 12 456.12bB
绿白一号Lübai No.1 46 161.49aA 35.96aA 0.64aA 90.50aA 30 564.01aA 24 567.79aA
纤指Xianzhi 14 376.87dC 25.46bB 0.41cC 69.03cC 6 892.95dC 4 985.95dD

Fig.1

Titratable acidity and total soluble solid contents of okra fruit Different lowercase letters mean significant difference (P < 0.05)"

Table 3

Contents of total sugar, reducing sugar, free amino acids, protein, Vc and crude fiber in okra fruit"

品种
Cultivar		 总糖
Total sugar (%)		 还原糖
Reducing sugar (%)		 游离氨基酸
Free amino acid (mg/100g FW)		 蛋白质
Protein (%)		 Vc
(mg/g)		 粗纤维
Crude fibre (g/100g FW)
咔里巴Cary 1.09a 2.74a 144.10a 11.41b 0.22b 0.74a
红秋葵Hongqiukui 1.00b 2.76a 123.27b 12.57a 0.21b 0.76a
杨贵妃Yangguifei 1.03ab 2.73a 106.18c 10.30b 0.22b 0.76a
绿白一号Lübai No.1 0.82c 2.78a 145.04a 12.88a 0.25a 0.74a
纤指Xianzhi 1.08a 2.76a 117.16b 12.51a 0.22b 0.75a

Table 4

Oligomeric proantho cyanidins content, the total flavonoid content, DPPH radical scavenging capacity, reducing power and FCR of okra fruit"

品种
Cultivar		 原花青素含量
Oligomeric proantho
cyanidins content (mg/g DW)		 总黄酮含量
Total flavonoid content
(mg RE/g DW)		 DPPH自由基清除能力
DPPH radical scavenging
capacity (mmol TE/g DW)		 还原力
Reducing power
(mmol TE/g DW)		 DPPH的IC50值
IC50 of DPPH
(mg/mL DW)		 FCR活性
FCR activity
(mg GAE/g DW)
咔里巴
Cary		 0.91b 1.92b 38.33b 58.91b 16.14c 7.68a
红秋葵
Hongqiukui		 0.71c 1.79c 27.01d 45.23d 18.18a 6.21c
杨贵妃
Yangguifei		 0.84b 1.85bc 32.07c 53.74c 17.21b 7.05b
绿白一号
Lübai No.1		 1.02a 2.21a 40.21a 62.31a 15.64c 8.01a
纤指
Xianzhi		 0.85b 1.87b 33.64c 54.06c 17.38b 7.01b

Table 5

Correlation analysis among oligomeric proantho cyanidins content, the total flavonoid content, DPPH radical scavenging capacity, reducing power and FCR"

指标
Index		 原花青素含量
Oligomeric proantho
cyanidins content		 总黄酮含量
Total flavonoid
content		 DPPH自由基清除能力
DPPH radical scavenging
capacity		 还原力
Reducing
power		 DPPH的
IC50值
IC50 of DPPH		 FCR
原花青素含量
Oligomeric proantho cyanidins content		 1
总黄酮含量Total flavonoid content 0.911** 1
DPPH自由基清除能力
DPPH radical scavenging capacity		 0.970** 0.828* 1
还原力Reducing power 0.985** 0.832* 0.988** 1
DPPH的IC50值IC50 of DPPH -0.966** -0.865* -0.979** -0.973** 1
FCR 0.981** 0.842* 0.991** 0.996** -0.990** 1
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