## 3 Results  
### Extraction Yields and Content Analyses  
No. 1 and No. 2 powders were extracted with four different solvents each (ethanol, ethyl acetate, n-hexane, and distilled water) to obtain eight types of extracts. The extraction yields and main components of each type of extract are presented in Table 1. The highest extraction yield was obtained with ethanol, followed by ethyl acetate, n-hexane, and distilled water. Among the extracts of the two varieties of Hang Ju, the extraction yield of No. 2 was higher than that of No. 1 with ethanol. The extraction yields using the other three solvents were similar for the two varieties of Hang Ju. The extraction yields for both No. 1 and No. 2 were the highest with ethanol and the lowest with distilled water. The highest total phenol content was obtained with ethanol (Table 1). Similar results for total phenol content were obtained with ethyl acetate, followed by distilled water. The lowest total phenol content was obtained with n-hexane. The total phenol content of ethanol and ethyl acetate extracts of No. 1 was higher than that of ethanol and ethyl acetate extracts of No. 2. Moreover, the total phenol content of the pure-water extract of No. 2 was higher than that of the pure-water extract of No. 1. Among all the extracts, the total phenol content was highest in No. 1A and lowest in No. 1C and No. 2C. Furthermore, the total flavonoid content (Table 1) was highest in ethanol extracts, followed by ethyl acetate, distilled water, and n-hexane extracts. Regardless of which solvent was used, the total flavonoid content of the extracts was higher in No. 1 than in No. 2. The ethanol and ethyl acetate extracts of No. 1 had the highest total flavonoid content, while the n-hexane extract of No. 2 had the lowest total flavonoid content. Total and reducing sugars (Table 1) were higher in the pure-water extract of No. 1 than in the pure-water extract of No. 2. Total chlorogenic acid contents were similar for the ethanol and pure-water extracts (Table 1). Meanwhile, the total chlorogenic acid content of the ethyl acetate extract was relatively low and that of the n-hexane extract was undetectable. The total chlorogenic acid content of the ethanol extract of No. 1 was higher than that of the ethanol extract of No. 2. However, the total chlorogenic acid contents of the \begin{table}
\begin{tabular}{c c c c c c} \hline
**Extract** & **Extraction** & **Total** & **Total** & **Reducing** & **Total** \\
**Number** & **Yield (\%)** & **Phenolic** & **Flavonoid** & **Total Sugar** & **Sugar** & **Chlorogenic** \\  & & **Content** & **Content** & & **Sugar** & **Acid** \\ \hline No. 1A & 7.30 & 7.07 & 16.71 & -5 & -5 & 6595.46 \\ No. 2A & 17.70 & 6.34 & 9.80 & -5 & -5 & 3059.37 \\ No. 1B & 5.00 & 4.28 & 16.22 & -5 & -5 & 53.38 \\ No. 2B & 4.30 & 3.53 & 5.96 & -5 & -5 & 105.69 \\ No. 1C & 3.10 & 0.26 & 6.94 & -5 & -5 & ND 6 \\ No. 2C & 3.10 & 0.26 & 3.03 & -5 & -5 & ND 6 \\ No. 1D & 2.20 & 3.28 & 10.84 & 9.24 & 23.32 & 5348.69 \\ No. 2D & 2.00 & 3.92 & 8.40 & 6.54 & 18.21 & 6445.59 \\ \hline \end{tabular}  
* Total phenolic content is expressed as mg GA equivalent/g dry weight, mg GA/g DW. 2 Total flavonoid content is expressed as mg rutiuvalent/g dry weight, mg rutiu/g DW. 3 Total carbohydrate content is expressed as mg/g DW. 4 The unit of reducing sugars and total chlorogenic acid is ug (DW 5. -\({}^{\prime\prime}\) means to test was performed. 6 ND means the detection result is below LOQ, i.e., not detected. No. 1 C: _modifilium_ Ramanat vari Taiwan Hang Ju No. 1; No. 2: _C. moriglium_ Ramanat vari. Taiwan Hang Ju No. 2; A: ethanol extracts; B: ethyl acetate extracts; C: hexane extracts; D: pure-water extracts.  
\end{table} 
Table 1: Extraction yields (%) and main components of the four solvent extracts of the two varieties of Hang Ju. pure-water and ethyl acetate extracts of No. 2 were higher than those of the pure-water and ethyl acetate extracts of No. 1. The highest total chlorogenic acid contents were found in the ethanol extract of No. 1 and the pure-water extract of No. 2.