The carotenoid and chlorophyll cont

The carotenoid and chlorophyll contents in the fruit of four species of Actinidia were measured to
determine the chemical basis of color in kiwifruit and related Actinidia species. The species studied
were the two commercial fruits Actinidia deliciosa cv. Hayward and a yellow-fleshed genotype Actinidia
chinensis cv. Hort16A (known commercially as ZESPRI Gold kiwifruit), the yellow fruit of Actinida
polygama, and the orange fruit of Actinida macrosperma. As reported previously, ripe fruit of A.
deliciosa contain chlorophylls a and b and the carotenoids normally associated with photosynthesis,
â-carotene, lutein, violaxanthin, and 9¢-cis-neoxanthin. The carotenoids in A. chinensis were similar
to those in A. deliciosa but also contained esterified xanthophylls. Only trace amounts of chlorophyll
were present in A. chinensis. The major carotenoid in both A. macrosperma and A. polygama was
â-carotene, with no chlorophyll detected. The yellow color of A. chinensis was mostly due to the
reduction of chlorophyll rather than an increase in carotenoid concentration. In contrast to the three
yellow/orange species, the green fruit of A. deliciosa retains chlorophyll during maturation and ripening,
and esterified xanthophylls are not produced. This suggests that in fruit of A. deliciosa chloroplasts
are not converted to chromoplasts as is typical for ripening fruit.

ผลลัพธ์ (แอฟริกา) 1:

Die chlorofil en karotenoïed inhoud in die vrugte van vier spesies van Actinidia gemeet aan.
bepaal die chemiese grond van kleur in Kiwi Actinidia en verwante spesies. Die Spesies bestudeer
was die twee Kommersiële vrugte Actinidia deliciosa CV. Hayward en 'n geel-vleis Actinidia genotipe.
chinensis CV. Hort16A (kommersieel bekend as ZESPRI Gold Kiwivrug), Die geel vrugte van Actinida.
Polygama, en die Oranje Fruit van Actinida Macrosperma. Soos voorheen berig, ryp vrugte van A.
deliciosa bevat Chlorophylls a en B en die gepaardgaande karotenoïede gewoonlik met fotosintese ,.
â-karoteen, luteïen, Violaxanthin, en 9 ¢ -cis-Neoxanthin. Die karotenoïede in A. chinensis was soortgelyk.
A. deliciosa maar ook vir diegene in Vervat veresterde xanthofylen. Spoor bedrae van chlorofil slegs
teenwoordig in A. chinensis. Die Groot karotenoïed in beide A. en A. Polygama was Macrosperma.
â-karoteen, met geen Chlorofil bespeur. Die kleur van A. chinensis was meestal te danke aan die.
Vermindering van chlorofilinhoud Eerder as 'n toename in die karotenoïed. In teenstelling met die Drie
Geel / Oranje spesie, die groen vrugte van A. deliciosa tydens rypwording en rypwording behou Chlorofil ,.
geproduseer en veresterde xanthofylen is nie. Dui daarop dat hierdie vrug van A. deliciosa in chloroplaste.
is nie na Chromoplaste As is tipies vir vrugte rypwording.