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             finasteride equivalent/1 g crude extract)              √–‡∫’¬∫«‘∏’»÷°…“

             ·≈– “¡“√∂°√–μÿâπ°“√ßÕ°¢Õ߇ âπ¢π„πÀπŸ‡¡“ å
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             ‰¥â  πÕ°®“°π—Èπ “√ °—¥®“°¥Õ°Õ—≠™—π¬—ß “¡“√∂
             μâ“πÕπÿ¡Ÿ≈Õ‘ √–‰¥â ‚¥¬ “√°≈ÿà¡·Õπ‚∑‰´¬“π‘π∑’Ë   1. ‡§√◊ËÕß™—Ëߥ‘®‘∑—≈ ∑»π‘¬¡ 4 μ”·Àπàß (Ana-
             æ∫„π¥Õ°Õ—≠™—π Õ“∑‘  “√‡∑Õπ“∑‘π (ternatin)   lytical Balance) (SBC 31, SCALTEC, Germany)
             ‡ªìπ “√∑’ËÕÕ°ƒ∑∏‘Ï„π°“√μâ“πÕπÿ¡Ÿ≈Õ‘ √–„π√–¥—∫   2. ‡§√◊ËÕß´’≈§«“¡√âÕπ (S-35, ZEALER,
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             ª“π°≈“ß∂÷ß„π√–¥—∫ Ÿß  ¥—ßπ—Èπ ¥Õ°Õ—≠™—π®÷ߙ૬  Thailand)
             °”®—¥Õπÿ¡Ÿ≈Õ‘ √–∑’ˇ°‘¥¢÷Èπ„π√à“ß°“¬·≈–≈¥§«“¡   3. μŸâÕ∫≈¡√âÕπ (Hot air oven) (D11907

             ‡ ◊ËÕ¡¢Õ߇´≈≈å´÷Ë߇ªìπº≈¡“®“°ƒ∑∏‘Ï¢ÕßÕπÿ¡Ÿ≈Õ‘ √–  schwabach, Memmert, Germany)
             Õ—π‡ªìπÀπ÷Ëß„πªí®®—¬ ”§—≠∑’Ë°àÕ„À⇰‘¥§«“¡·°à™√“  4. ‡§√◊ËÕß ‡ª°‚μ√‚ø‚μ¡‘‡μÕ√å (UV-spectro-
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             ·≈–‚√§‡√◊ÈÕ√—ßμà“ß Ê                        photometer) (T80, PG, United Kingdom)
                 ®“° ∂“π°“√≥åªí®®ÿ∫—πºŸâ∫√‘‚¿§‰¥â„À⧫“¡     5.  “√¥’æ’æ’‡Õ™ (DPPH) (1,1-diphenyl-1-
              π„®‡√◊ËÕß ÿ¢¿“æ°—π¡“°¢÷Èπ‚¥¬‡©æ“–Õ¬à“߬‘Ëß°“√  picrylhydrazyl) (Sigma-Aldrich, United States)
             √—∫ª√–∑“πÕ“À“√À√◊Õ‡§√◊ËÕߥ◊Ë¡∑’Ë¡’ à«πº ¡¢Õßæ◊™  6.  “√‚ø≈‘π §Õ¬‡Õ‡®Õ√å √’‡Õ‡®âπ∑å (Folin-

             º—° ¡ÿπ‰æ√ ¡’°“√»÷°…“æ∫«à“‡§√◊ËÕߥ◊Ë¡∑’ˉ¥â√—∫°“√  Ciocalteu reagent) (Sigma-Aldrich, United
             ∫√‘‚¿§¡“°∑’Ë ÿ¥§◊Õ πÈ”‡ª≈à“ √Õß≈ß¡“Õ—π¥—∫ 2 §◊Õ  States)
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             πÈ”™“  ®“°¢â“ßμâπ· ¥ß„Àâ‡ÀÁπ«à“ ™“‡ªìπ‡§√◊ËÕߥ◊Ë¡  7.  “√¡“μ√∞“π°√¥·°≈≈‘° (Gallic acid)
             ‡æ◊ËÕ ÿ¢¿“æ∑’Ë°”≈—߉¥â√—∫§«“¡π‘¬¡ ª√–°Õ∫°—∫„π  (Sigma-Aldrich, United States)
             ª√–‡∑»‰∑¬¡—°æ∫°“√π”¥Õ°Õ—≠™—π‰ª„™âª√–‚¬™πå       8.  “√¡“μ√∞“π«‘μ“¡‘π´’ (L-Ascorbic acid)

             ‚¥¬º ¡„πÕ“À“√·≈–‡§√◊ËÕߥ◊Ë¡ ¥â«¬‡Àμÿπ’È °“√  (Sigma-Aldrich, United States)
             «‘®—¬π’È®÷ßπ”¥Õ°‰¡â∑’Ë “¡“√∂∫√‘‚¿§‰¥â ‡™àπ ¥Õ°  9. ‚´‡¥’¬¡§“√å∫Õ‡πμ (Sodium carbonate)
             Õ—≠™—π ¡“æ—≤𓇪ìπ™“ ¡ÿπ‰æ√‡æ◊ËÕ ÿ¢¿“æ      (QReC, New Zealand)

             Õ¬à“߉√°Áμ“¡°√–∫«π°“√™ß™“À√◊Õ ¿“«–„π°“√         10. ‡¡∑“πÕ≈ (Methanol) (95%, Iken
             º≈‘μ™“ ¡ÿπ‰æ√Õ“® àߺ≈μàÕª√‘¡“≥ “√ª√–°Õ∫     sciencetific, Thailand)

             øïπÕ≈‘°√«¡·≈–ƒ∑∏‘Ïμâ“πÕπÿ¡Ÿ≈Õ‘ √–„π™“ ¡ÿπ
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