| ²é¿´: 410 | »Ø¸´: 1 | ||
| ±¾Ìû²úÉú 1 ¸ö ·ÒëEPI £¬µã»÷ÕâÀï½øÐв鿴 | ||
xiehuaiyanľ³æ (СÓÐÃûÆø)
|
[ÇóÖú]
ÇóÖú·Ò룬ϣÍû¾«×¼Ð©£¬Ð»Ð»
|
|
|
The aim of the research was to determine the chlorophyll and carotene pigments simultaneously from different vegetables, using three organic solvents, in order to obtain the best extraction solution. Absorptive properties of the pigments were followed up in quantitative analysis using a spectrophotometric method. The literature presents two methods to determine these pigments - the trichromatic method and monochromatic method, the two methods differing by the used wavelengths. It is known that chlorophyll pigments have broad absorption band from blue to red. Also the coextracted carotenoids have maximum absorption in blue band so that the chosen determination method is based on measuring the absorbance at three wavelengths for each type of matrix and then calculate chlorophyll and carotene using the three "trichromatic equations" of LICHTENTALER and WELLBURN |
» ²ÂÄãϲ»¶
085600²ÄÁÏÓ뻯¹¤301·ÖÇóµ÷¼ÁԺУ
ÒѾÓÐ5È˻ظ´
081700£¬311£¬Çóµ÷¼Á
ÒѾÓÐ15È˻ظ´
Ò»Ö¾Ô¸±±¾©»¯¹¤085600 310·ÖÇóµ÷¼Á
ÒѾÓÐ18È˻ظ´
²ÄÁÏÓ뻯¹¤371Çóµ÷¼Á
ÒѾÓÐ14È˻ظ´
336²ÄÁÏÓ뻯¹¤085600Çóµ÷¼Á
ÒѾÓÐ7È˻ظ´
²ÄÁÏ334Çóµ÷¼Á
ÒѾÓÐ18È˻ظ´
331Çóµ÷¼Á
ÒѾÓÐ8È˻ظ´
332Çóµ÷¼Á
ÒѾÓÐ17È˻ظ´
Ò»Ö¾Ô¸ÄϾ©º½¿Õº½Ìì´óѧ ²ÄÁÏÓ뻯¹¤329·ÖÇóµ÷¼Á
ÒѾÓÐ4È˻ظ´
²ÄÁÏר˶322
ÒѾÓÐ7È˻ظ´
¹Å×¶
Ìú³æ (³õÈëÎÄ̳)
- ·ÒëEPI: 1
- Ó¦Öú: 0 (Ó×¶ùÔ°)
- ½ð±Ò: 41.6
- Ìû×Ó: 27
- ÔÚÏß: 12.7Сʱ
- ³æºÅ: 2638667
- ×¢²á: 2013-09-06
- רҵ: ¶¯ÎïÐÎ̬ѧ¼°Åß̥ѧ
¡¾´ð°¸¡¿Ó¦Öú»ØÌû
¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï
phu_grassman: ½ð±Ò+5, thanks 2013-09-07 14:53:45
xiehuaiyan: ½ð±Ò+15, ·ÒëEPI+1, ¡ï¡ï¡ïºÜÓаïÖú, ·ÒëµÄ»¹¿ÉÒÔ 2013-09-08 22:04:48
phu_grassman: ½ð±Ò+5, thanks 2013-09-07 14:53:45
xiehuaiyan: ½ð±Ò+15, ·ÒëEPI+1, ¡ï¡ï¡ïºÜÓаïÖú, ·ÒëµÄ»¹¿ÉÒÔ 2013-09-08 22:04:48
|
ÊÔ·ÒëÈçÏ£º ¡¾¸öÈËÈÏΪÔ×÷ÕßÓïÑÔÓÐÐ©Ææ¹Ö¡¿ ±¾Ñо¿µÄÄ¿µÄÔÚÓÚʹÓÃÈýÖÖ²»Í¬µÄÓлúÈܼÁ£¨¡¾Ê¹ÓÃÈýÖÖ²»Í¬ÈܼÁÊÇ¡¿ÎªÁË»ñÈ¡×îºÃµÄÝÍȡҺ£© ÔÚ²»Í¬Ö²ÎïÖÐͬʱ²â¶¨Ò¶ÂÌËØÒÔ¼°ºúÂÞ²·Ëصĺ¬Á¿¡£ ¡¾ÝÍȡ֮ºó¡¿£¬É«ËصÄÎü¹âÖµ½ô½Ó×ű»·Ö¹â¹â¶È·¨Ëù¶¨Á¿²â¶¨¡£±¾ÎÄÏ×Õ¹ÏÖÁËÁ½ÖÖ·ÖÎöÕâÐ©É«ËØµÄ·½·¨-ÈýÉ«·¨(trichromatic)ÒÔ¼°µ¥É«·¨(monochromatic)£¬ÕâÁ½ÖÖ·½·¨µÄÇø±ðÔÚÓÚËùÓò¨³¤µÄ²»Í¬¡£ÒÑÖªÒ¶ÂÌËØ¿ÉÒÔÎüÊÕÓÉÀ¶É«µ½ÂÌÉ«µÄ½Ï´ó·¶Î§µÄ¹â£¬¶ø¹²ÝÍÈ¡µÄºúÂܲ·ËصÄ×î´óÎü¹â¶ÈÊÇÔÚÀ¶É«£¨Ìõ´ø£©¡£ Òò´ËËùÑ¡ÓõķÖÎö·½·¨ÊǸù¾Ý²âÁ¿ÔÚÈý¸ö²»Í¬²¨³¤ÏÂÿ¸ö»ùÖʵIJ»Í¬µÄÎü¹â¶È£¬ÔËÓÃLichtenthaler ºÍWellburnµÄÈýÉ«·¨¹«Ê½À´¼ÆËãÒ¶ÂÌËØÒÔ¼°ºúÂܲ·Ëصĺ¬Á¿¡£ The aim of the research was to determine the chlorophyll and carotene pigments simultaneously from different vegetables, using three organic solvents, in order to obtain the best extraction solution. ±¾Ñо¿µÄÄ¿µÄÔÚÓÚʹÓÃÈýÖÖ²»Í¬µÄÓлúÈܼÁ£¨ÎªÁË»ñÈ¡×îºÃµÄÝÍȡҺ£© ÔÚ²»Í¬Ö²ÎïÖÐͬʱ²â¶¨Ò¶ÂÌËØÒÔ¼°ºúÂÞ²·Ëصĺ¬Á¿¡£ Absorptive properties of the pigments were followed up in quantitative analysis using a spectrophotometric method. É«ËØµÄÎü¹âÖµ½ô½Ó×ű»·Ö¹â¹â¶È·¨Ëù¶¨Á¿²â¶¨ The literature presents two methods to determine these pigments - the trichromatic method and monochromatic method, the two methods differing by the used wavelengths. ±¾ÎÄÏ׳ÊÏÖÁËÁ½ÖÖ·ÖÎöÕâÐ©É«ËØµÄ·½·¨-ÈýÉ«·¨(trichromatic)ÒÔ¼°µ¥É«·¨(monochromatic)£¬ÕâÁ½ÖÖ·½·¨µÄÇø±ðÔÚÓÚËùÓò¨³¤µÄ²»Í¬¡£ It is known that chlorophyll pigments have broad absorption band from blue to red. ÒÑÖªÒ¶ÂÌËØ¿ÉÒÔÎüÊÕÓÉÀ¶É«µ½ÂÌÉ«µÄ½Ï´ó·¶Î§µÄ¹â¡£ Also the coextracted carotenoids have maximum absorption in blue band so that the chosen determination method is based on measuring the absorbance at three wavelengths for each type of matrix and then calculate chlorophyll and carotene using the three "trichromatic equations" of LICHTENTALER and WELLBURN ͬʱ£¬¹²ÝÍÈ¡µÄºúÂܲ·ËصÄ×î´óÎü¹â¶ÈÊÇÔÚÀ¶É«£¨Ìõ´ø£©¡£ Òò´ËËùÑ¡ÓõķÖÎö·½·¨ÊǸù¾Ý²âÁ¿ÔÚÈý¸ö²»Í¬²¨³¤ÏÂÿ¸ö»ùÖʵIJ»Í¬µÄÎü¹â¶È£¬ÔËÓÃLichtenthaler ºÍWellburnµÄÈýÉ«·¨¹«Ê½À´¼ÆËãÒ¶ÂÌËØÒÔ¼°ºúÂܲ·Ëصĺ¬Á¿¡£ |
2Â¥2013-09-06 03:15:30














»Ø¸´´ËÂ¥