The product quality was evaluated in terms of charred appearance at the surface, moisture content, soluble solids content, water activity, firmness, colour and volume.
The traits studied included ethylene, polygalacturonase (PG) activity, pectin methyl esterase (PME) activity, firmness, total phenol content, and fungal-induced decay were measured weekly during 35 days of storage.
Copper shares led the market today [March 12] in point of activity and firmness, Anacondas advancing over a point on continued talk of an approaching extra disbursement, which may be the basis for a higher dividend for Amalgamated.
Cherries were analyzed for various quality parameters, such as gas concentration inside packages, pH, total soluble solid, water activity, weight loss, firmness, color, anthocyanin profile, sensory attributes, and decay rate during 30 d of storage at 4 °C.
Box Behnken experimental design with response surface methodology was used for optimization of drying process in terms of physical (moisture content, water activity, total color change, firmness and rehydratation power) and chemical (total phenols, total flavonoids, monomeric anthocyanins and ascorbic acid content and antioxidant activity) properties of dried samples.
The QTLs associated with fruit firmness, PPO activity, AsA concentration and concentration of polyphenol compounds as well as FD are the first reported for pear.
The largest cluster, which comprised 22 QTLs associated with fruit firmness, PPO activity, concentration of AsA and five polyphenolic compounds (catechin, epicatechin, procyanidin B2, isorhamnetin rutinoside and quercetin), was identified on LG3 in POP369 for both parents.
Parent POP369-male exhibited stable QTLs across years associated with fruit firmness, PPO activity and concentration of chlorogenic acid, cryptochlorogenic acid, catechin, epicatechin, quercetin arabinose, as well as the unknown compounds 417.12(1) and 417.12(2) (Additional file 3: Table S1).
For POP369-male, QTLs associated with firmness, PPO activity, and concentration of catechin and epicatechin in both years and procyanidin B2 in 2011 only, co-located on LG3 for both 2011 and 2012.
In future, candidate genes for QTLs controlling firmness, PPO activity, and polyphenolic compound concentration will be identified utilising the reference genome sequences of pears 'Bartlett', 'Dangshansuli' and syntenic apple 'Golden Delicious'.
Our identification of a stable QTL on LG3 across years and populations, and in common for control of fruit firmness, PPO activity and polyphenol concentration, confirms reports of the physiological relationship between firmness and maturity in the accumulation of polyphenols [ 5, 49, 53].
