| ²é¿´: 463 | »Ø¸´: 2 | |||
| ±¾Ìû²úÉú 1 ¸ö ·ÒëEPI £¬µã»÷ÕâÀï½øÐв鿴 | |||
xiehuaiyanľ³æ (СÓÐÃûÆø)
|
[ÇóÖú]
Ï£Íû¾«È·µÄ·Ò룬ллÀ²
|
||
|
The main pigments found in vegetables are chlorophyll a, b and c. Chlorophyll a converts light energy into chemical energy through photosynthesis process. The content of chlorophyll pigments varies by species. The aim of the research was to determine simultaneously chlorophyll and carotene content from different vegetables by spectrophotometric method, testing three organic solvents to obtain the best extraction solution. 17 samples of cherry tomatoes, peppers and cucumbers, collected from different greenhouses located in southern part of Romania were analyzed. The carotenoids and chlorophyll pigments extracted in methanol, diethyl ether and acetone, were determined based on the absorbance of three wavelengths: 470 nm, 645 nm-653 nm and 662 nm-666 nm. The results were calculated according to the three "trichromatic equations" of Lichtentaler and Wellburn. The best extraction solvents for simultaneously determination of chlorophyll a and b and carotene were methanol and acetone. For cherry tomatoes and tomatoes the best extraction solvent was methanol for chlorophyll a and acetone for carotene. For peppers the best extraction solvent was acetone and for cucumbers it was methanol. Variation coefficients were high, both between vegetable species and between tested varieties or hybrids. |
» ²ÂÄãϲ»¶
ÉúÎïѧµ÷¼Á
ÒѾÓÐ10È˻ظ´
Çóµ÷¼Á
ÒѾÓÐ3È˻ظ´
320Çóµ÷¼Á
ÒѾÓÐ5È˻ظ´
½ÓÊÜÈκε÷¼Á
ÒѾÓÐ7È˻ظ´
»¯Ñ§070300 Çóµ÷¼Á
ÒѾÓÐ29È˻ظ´
297£¬¹¤¿Æµ÷¼Á?
ÒѾÓÐ5È˻ظ´
22408 312Çóµ÷¼Á
ÒѾÓÐ26È˻ظ´
ÊÕµ½¸´ÊÔµ÷¼Áµ«ÊÇÈ¥²»ÁË
ÒѾÓÐ8È˻ظ´
260Çóµ÷¼Á
ÒѾÓÐ5È˻ظ´
¼±Ðèµ÷¼Á
ÒѾÓÐ10È˻ظ´
бÑôÁõ·ã
ľ³æ (СÓÐÃûÆø)
×ÊÉî·Òë QQ£º281793077
- ·ÒëEPI: 28
- Ó¦Öú: 12 (СѧÉú)
- ½ð±Ò: 3274.8
- ºì»¨: 3
- Ìû×Ó: 278
- ÔÚÏß: 426Сʱ
- ³æºÅ: 1214780
- ×¢²á: 2011-02-27
- ÐÔ±ð: GG
- רҵ: Íâ¹úÓïÑÔ
¡¾´ð°¸¡¿Ó¦Öú»ØÌû
¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï
°®ÓëÓêÏÂ: ½ð±Ò+1 2013-07-29 19:12:51
xiehuaiyan: ½ð±Ò+15, ·ÒëEPI+1, ¡ï¡ï¡ï¡ï¡ï×î¼Ñ´ð°¸, ×îÏÈÍê³É£¬·ÒëµÄ±È½Ï¾«È·£¬Ð»Ð»£¡ 2013-07-30 09:09:57
°®ÓëÓêÏÂ: ½ð±Ò+1 2013-07-29 19:12:51
xiehuaiyan: ½ð±Ò+15, ·ÒëEPI+1, ¡ï¡ï¡ï¡ï¡ï×î¼Ñ´ð°¸, ×îÏÈÍê³É£¬·ÒëµÄ±È½Ï¾«È·£¬Ð»Ð»£¡ 2013-07-30 09:09:57
|
ÔÚÊß²ËÖз¢ÏÖµÄÉ«ËØÖ÷ÒªÊÇÒ¶ÂÌËØa£¬bºÍc¡£Ò¶ÂÌËØaͨ¹ý¹âºÏ×÷Óùý³Ì½«¹âÄÜת»¯Îª»¯Ñ§ÄÜ¡£Ò¶ÂÌËØÉ«ËØµÄº¬Á¿ÒòÖÖÀà¶øÓÐËù²îÒì¡£Ñо¿µÄÄ¿µÄÊÇÓùâÆ×·ÖÎö·¨À´Í¬Ê±È·¶¨²»Í¬Ê߲˵ÄÒ¶ÂÌËØºÍºúÂܲ·Ëغ¬Á¿£¬²âÊÔÈý·ÝÓлúÈܼÁÒÔ»ñµÃ×î¼ÑµÄÌáȡҺ¡£¶ÔÈ¡×ÔÂÞÂíÄáÑÇÄϲ¿µØÇø·Ö²¼ÔÚ²»Í¬Î»ÖôóÅïÀïµÄ17·ÝʥŮ¹û£¬À±½·ºÍ»Æ¹ÏÑùÆ·½øÐÐÁË·ÖÎö¡£ÔÚ¼×´¼£¬¶þÒÒÃÑ£¬±ûͪÀïÌáÈ¡ÁËÀàºúÂܲ·ËغÍÒ¶ÂÌËØÉ«ËØ£¬»ùÓÚÈý¸ö²¨³¤µÄÎü¹âÂʱ»È·¶¨£¬Èý¸ö²¨³¤ÊÇ£º470ÄÉÃ×£¬645ÄÉÃ×-653ÄÉÃ×ÒÔ¼°662ÄÉÃ×-666ÄÉÃס£¸ù¾ÝLichtentaler ºÍWellburnµÄ¡°ÈýÔÉ«·½³Ì¡±½øÐмÆËãµÃ³ö½á¹û¡£Í¬Ê±²â¶¨Ò¶ÂÌËØaºÍbÒÔ¼°ºúÂܲ·ËصÄ×î¼ÑµÄÌáÈ¡ÈܼÁ·Ö±ðΪ¼×´¼ºÍ±ûͪ¡£¶ÔÓÚʥŮ¹ûºÍÎ÷ºìÊÁµÄ×î¼ÑÌáÈ¡ÈܼÁÊǼ״¼À´²â¶¨Ò¶ÂÌËØa¶ø±ûͪ²â¶¨ºúÂܲ·ËØ¡£¶ÔÓÚÀ±½·µÄ×î¼ÑÌáÈ¡ÈܼÁÊDZûͪ¶ø»Æ¹ÏµÄ×î¼ÑÌáȡҺÊǼ״¼¡£ÔÚÊß²ËÆ·ÖÖÖ®¼äÒÔ¼°²ÎÊÔÆ·ÖÖ»òÔÓ½»Æ·ÖÖÖ®¼äµÄ±äÒìϵÊýÊǺܸߵġ£ ¹©²Î¿¼£¬Ð»Ð»¡£ ÁíÍ⣬¥Ö÷Õâ½ð±ÒÕæÐÄÉÙÁ˰ɣ¬Òª¾«È·»¹Õâô¶à£¬15½ð±Ò£¬ÎÞÓïing |
2Â¥2013-07-29 12:12:56
hyt0615
½ð³æ (³õÈëÎÄ̳)
- ·ÒëEPI: 14
- Ó¦Öú: 0 (Ó×¶ùÔ°)
- ½ð±Ò: 1472.8
- Ìû×Ó: 50
- ÔÚÏß: 31.3Сʱ
- ³æºÅ: 2434650
- ×¢²á: 2013-04-24
- ÐÔ±ð: MM
- רҵ: ·ÖÎöÒÇÆ÷ÓëÊÔ¼Á
¡¾´ð°¸¡¿Ó¦Öú»ØÌû
¡ï
°®ÓëÓêÏÂ: ½ð±Ò+1 2013-07-29 19:13:00
°®ÓëÓêÏÂ: ½ð±Ò+1 2013-07-29 19:13:00
| Êß²ËÖеÄÖ÷ÒªÉ«ËØÊÇÒ¶ÂÌËØa£¬bºÍc¡£Í¨¹ý¹âºÏ×÷Óã¬Ò¶ÂÌËØa½«¹âÄÜת»¯Îª»¯Ñ§ÄÜ¡£Ò¶ÂÌËØµÄº¬Á¿ÒòÊß²ËÖÖÀà¶øÒì¡£±¾Ñо¿Ä¿µÄÊÇÓ÷ֹâ¹â¶È·¨ÔÚ²»Í¬µÄÊß²ËÖÐͬʱ²â¶¨Ò¶ÂÌËØºÍºúÂܲ·Ëغ¬Á¿£¬²âÊÔÈýÖÖÓлúÈܼÁÒÔ»ñµÃ×î¼ÑÝÍȡҺ¡£¶Ô´ÓÂÞÂíÄáÑÇÄϲ¿µÄÊ߲˴óÅïÀï»ñµÃµÄÓ£ÌÒÎ÷ºìÊÁ£¬À±½·ºÍ»Æ¹Ï£¬¹²17¸öÑùÆ·½øÐÐÁË·ÖÎö¡£ÌáÈ¡ÔÚ¼×´¼£¬¶þÒÒÃÑ£¬±ûͪÖеÄÀàºúÂܲ·ËغÍÒ¶ÂÌËØ·Ö±ðÔÚ470 nm£¬645 -653 nmºÍ662-666 nm£¬Èý¸ö²¨³¤Ìõ¼þϽøÐвⶨ¡£½á¹û¼ÆËãÊǸù¾ÝLichtentaler and WellburnµÄÈý¸ö¡°ÈýÔÉ«·½³Ì¡±¡£Í¬Ê±²â¶¨Ò¶ÂÌËØaºÍbºÍºúÂܲ·ËصÄ×î¼ÑÌáÈ¡ÈܼÁÊǼ״¼ºÍ±ûͪ¡£¶ÔÓÚÓ£ÌÒÎ÷ºìÊÁºÍÎ÷ºìÊÁ£¬²â¶¨Ò¶ÂÌËØaµÄ×î¼ÑÌáÈ¡ÈܼÁÊǼ״¼£¬ºúÂܲ·ËØÊDZûͪ¡£À±½·µÄ×î¼ÑÌáÈ¡ÈܼÁÊDZûͪ£¬¶ø»Æ¹ÏÊǼ״¼¡£²»Í¬µÄÊß²ËÆ·ÖÖÖ®¼äºÍ²»Í¬µÄ²âÊÔÑùÆ·»òÕßÔÓ½»Æ·ÖÖÖ®¼ä£¬±äÒìϵÊýºÜ¸ß¡£ |
3Â¥2013-07-29 12:27:12













»Ø¸´´ËÂ¥