1. IntroductionPhospholipids and ly

1. Introduction
Phospholipids and lysophospholipids have been reported as
potential growth regulators (Cowan, 2009; Wang and Chapman,
2013). The application of lysophospholipids such as LPE can also
promote ripening and accelerate ripening-related changes. For
example, pre-harvest treatment with LPE enhanced the color of
cranberry, apple, red pepper, table grape and tomato fruit (Farag
and Palta, 1991; Hong et al., 2007; Kang et al., 2003; Ozgen et al.,
2005). LPE treatment allowed normal ripening of tomato fruit
while maintaining fruit
firmness and increasing shelf life of the
fruit while retarding fruit and leaf senescence (Farag and Palta,
1993). This improvement in shelf life and reduced senescence of
leaf tissue was accompanied with reduced ion leakage from these
tissues. The exact mechanism by which LPE delays senescence and
improves shelf life is not known. However, LPE has been found to
inhibit the activity of phospholipase D (PLD), in a highly specific
manner (Ryu et al., 1997). PLD is known to be activated during
ethylene induced senescence (Wang, 2002) and this activation
leads to membrane breakdown. It thus appears that LPE may be
enhancing shelf life by preserving membrane health during
senescence and aging of fruit.
Banana is classified as a climacteric fruit. In this fruit, a series of
physiological and biochemical changes are known to lead to the
development of the soft edible fruit (Prasanna et al., 2007; Tapre
and Jain, 2012). Some of the primary changes during this ripening
process include an increase in membrane permeability (leakage),
loss of fruit pulp
firmness, decrease in starch, increase in sugar,
decrease of peel thickness as well as changes in color and aroma
(Baur and Workman, 1964; Seymour et al., 1993; Wade and Bishop,
1978).

ผลลัพธ์ (แอฟริกา) 1:

1. Inleiding
fosfolipiede en lysofosfolipiden is aangemeld as
potensiële groeireguleerders (Cowan, 2009; Wang en Chapman,
2013). Toepassing van die lysofosfolipiden soos LPE Kan ook
bevorder rypwording en rypwording-verwante veranderinge te versnel. Vir
voorbeeld, pre-oes behandeling met die LPE Verbeterde kleur van
Cranberry, Apple, rooi soetrissie, Tafeldruif tamatie en vrugte (Farag
en Palta, die 1991, Hong et al, 2007;. Kang et al, 2003;. Ozgen et al. ,
2005). LPE Behandeling van tamatie vrugte rypwording toegelaat Normale
terwyl die handhawing van Fruit
fermheid en raklewe van die verhoging van die
vrugte en die blare verouder, terwyl vertraag (Farag en Palta,
die 1993). Verbetering in raklewe en dit verminder veroudering van
blaarweefsel is vergesel met 'n verminderde ioon lekkasie van hierdie
weefsel. Presiese meganisme waardeur vertraag die veroudering LPE en
verbeter raklewe is nie bekend nie. Tog het LPE gevind om
die aktiwiteit van fosfolipase D (PLD) inhibeer, in 'n baie spesifieke
manier (Ryu et al., 1997). PLD is bekend geaktiveer om tydens
veroudering veroorsaak etileen (Wang, die 2002) en hierdie aktivering
Lei tot uiteensetting membraan. Dit blyk dus dat LPE Mag wees
verbetering raklewe Gesondheid deur die behoud van membraan tydens
veroudering en veroudering van Fruit.
Fruit piesang is geklassifiseer as 'n kritieke lewe jaar. Vrugte in hierdie, 'n reeks van
fisiologiese en biochemiese veranderinge is bekend om te lei tot die
ontwikkeling van die sagte vrugte eetbaar (Prasanna et al, 2007;. Tapre
en Jain, 2012). Sommige van die primêre Veranderinge gedurende hierdie rypwording
proses sluit in 'n toename in membraan deurlaatbaarheid (lekkasie),
verlies van vrugtemoes
hardheid, afname in stysel, toename in suiker,
afname van Peel Dikte sowel as veranderinge in kleur en aroma
(Baur en Workman ,. 1964; Seymour et al, 1993;. Wade en biskop,
in 1978).