토양의 pH (6.9 vs. 7.6)에 의한 배추 (Brassica rapa ssp. campestris) 의 성분에 대한 영향 Components in Chinese Cabbage (Brassica rapa ssp. campestris) as Affected by Soil pH: 6.9 vs. 7.6원문보기
Functional and nutritional components of 7 cultivars of Chinese cabbage (CC; Brassica rapa subspecies campestris) from China were analyzed to compare the effects of soil pH (6.9 vs. 7.6). The CC grew on the soil of pH6.9 (CC-6.9) contained significantly increased amounts (2.3~4-fold) of pectin, crud...
Functional and nutritional components of 7 cultivars of Chinese cabbage (CC; Brassica rapa subspecies campestris) from China were analyzed to compare the effects of soil pH (6.9 vs. 7.6). The CC grew on the soil of pH6.9 (CC-6.9) contained significantly increased amounts (2.3~4-fold) of pectin, crude protein, vitamin C and vitamin E compared to the control. The contents of ash and minerals (Ca, Fe, Na, Zn, K and Mn) were also significantly increased in CC-6.9. However, CC-6.9 contained 16-75% lower contents of reducing sugars, cellulose and crude fat than CC-7.6. CC-7.6 contained more glucosinolates than CC-6.9; gluconasturtiin (20.68 vs. 0.84 $nmol{\cdot}g^{-1}$ wet wt) and gluconapin (202.55 vs. 0.15 $nmol{\cdot}g^{-1}$ wet wt). In conclusion, CC-6.9 had an improved texture (high pectin and low cellulose) and nutritional value (high in protein, Ca, Fe, Zn, vitamin C, and E), whereas CC-7.6 had better taste (high in reducing sugars) and anticancer functionality (high in glucosinolates).
Functional and nutritional components of 7 cultivars of Chinese cabbage (CC; Brassica rapa subspecies campestris) from China were analyzed to compare the effects of soil pH (6.9 vs. 7.6). The CC grew on the soil of pH6.9 (CC-6.9) contained significantly increased amounts (2.3~4-fold) of pectin, crude protein, vitamin C and vitamin E compared to the control. The contents of ash and minerals (Ca, Fe, Na, Zn, K and Mn) were also significantly increased in CC-6.9. However, CC-6.9 contained 16-75% lower contents of reducing sugars, cellulose and crude fat than CC-7.6. CC-7.6 contained more glucosinolates than CC-6.9; gluconasturtiin (20.68 vs. 0.84 $nmol{\cdot}g^{-1}$ wet wt) and gluconapin (202.55 vs. 0.15 $nmol{\cdot}g^{-1}$ wet wt). In conclusion, CC-6.9 had an improved texture (high pectin and low cellulose) and nutritional value (high in protein, Ca, Fe, Zn, vitamin C, and E), whereas CC-7.6 had better taste (high in reducing sugars) and anticancer functionality (high in glucosinolates).
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제안 방법
, 2010). In this study, we further surveyed the effects of soil pH at 6.9 vs. 7.6 on the components of CC. Seven cultivars of CC were used not to be confused soil pH effect from cultivar genetic specificity.
대상 데이터
The two groups were sampled after confirmation of uniformity in color, shape, and size of the mature plants, based on criteria given by the Korea Seed & Variety Service (Anyang, Kyunggi, Korea). For each trial, a cultivar was grown in eight replicates, and three plants were randomly sampled. For glucosinolates and minerals, only one replication wa sused.
Table 1. The seven Chinese cabbage cultivars (Brassica rapa ssp. campestris) used in this study.
데이터처리
0 was used for statistical analysis. For average comparison between two groups, one-way ANOVA were performed. Pearson correlation coefficients were calculated for the correlations between dependent variables.
For average comparison between two groups, one-way ANOVA were performed. Pearson correlation coefficients were calculated for the correlations between dependent variables.
이론/모형
, 1986). The quantity of crude protein was measured by the method of Bradford (Bradford, 1976). Crude fat in the homogenized samples were transferred to hexane and the weight after drying was determined as crude fat.
The minerals in the digested samples (60-62% nitric acid and 30% hydrogen peroxide) were measured by Inductively Coupled Plasma Atomic Emission Spectrometer (Optima 3300DV, Perkin-Elmer Instruments, Shelton, USA). The reducing sugar contents were measured by the DNS (3,5-dinitrosalicylic acid) method (Miller, 1959). The water-insoluble pectin contents were measured by the method of Manabe (Manabe and Naohara, 1986).
The reducing sugar contents were measured by the DNS (3,5-dinitrosalicylic acid) method (Miller, 1959). The water-insoluble pectin contents were measured by the method of Manabe (Manabe and Naohara, 1986). The homogenized samples for cellulose were digested with cellulose (1.
Crude fat in the homogenized samples were transferred to hexane and the weight after drying was determined as crude fat. Vitamin C was measured by the DNP method (AOAC, 1995). The content of vitamin E was measured by the modified method of Aaran and Nikkari (Aaran and Nikkari, 1988).
성능/효과
In conclusion, CC-6.9 had a better texture than CC-7.6 because it contained increased pectin and lowered cellulose. CC-6.
The effect of soil pH on the levels of these components in CC was extremely significant, as shown in Table 3-5. In this report, we showed that the effect of soil pH on the content ratios of CC-6.9 to CC-7.6 were, on average, as follows: moisture, 0.95; reducing sugar, 0.61; crude protein, 2.22; crude fat, 0.49; pectin, 3.74; cellulose, 0.44; vitamin C, 2.27; vitamin E, 4.03; ash, 2.74 (Table 3); Ca, 4.57; Mg, 1.73; Fe, 4.73; Zn, 2.27; Na, 3.56; K, 1.53; Mn, 3.13 (Table 4); butenyl ITC, 0.001; and phenylethyl ITC, 0.041 (Table 5). The statistical comparison of averages showed that all chemical components and many minerals were significantly (p<0.
후속연구
, #26107, #26125 and #26131 were a good source of Ca, Fe, and Mg, which are deficient in many diets and important for pregnant women (White and Broadley, 2009). Other significant correlations remain unknown at this time, and thus further study of the physiology of CC is required.
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