The major phenolics of 'd' Anjou' pear (Pyrus communis L.)
tissues were chlorogenic acid and arbutin. Chlorogenic acid
inhibited mycelial growth and spore germination of Penicillium
expansum and mycelial growth of Mucor piriformis. Slight increases
in radial growth and spore germination of Botrytis cinerea occurred
on chlorogenic acid media. Chlorogenic...
Alcoholic off-flavor and accompanying volatile compounds produced by bananas (Cavendishii spp) held at 20°C and subjected to aerobic (air control treatment) or anaerobic conditions (nitrogen treatment) were compared by solid phase micro extraction (SPME), a newly developed method for volatile separation. In general, volatile production was suppressed under anaerobic conditions...
Blackberry varieties were evaluated with modified atmosphere packaging, using films Cryovac D-940 and D-955 in 0° and 5°C storage. Moisture loss was kept extremely
low (less than 3%) in packaged fruits, but mold infection was excessively high because of high humidity accumulated inside the container. Blackberries selectively harvested
into 3...
Free abscisic acid (ABA) in Yellow Globe Danvers onion tissues was
determined during maturation and storage. The amount of ABA in leaf
tissue reached a maximum (1.81 ng/gm dry weight) at 40% top fall. Neck
tissue ABA reached a maximum (0.33 ng/gm dry weight) at 60-70% top fall.
ABA of...
This thesis research is a series of five studies dealing
with various aspects of hazelnut quality:
1. Identification of kernel mold and its incidence among
hazelnut varieties.
2. Seasonal development and composition of kernels.
3. Hazelnut oil composition (fatty acids and
tocopherols) of seventeen varieties.
4. Hazelnut oil composition compared...
'Anjou' pears were sprayed with 2 concentrations of
CaCl₂ during fruit development and harvested at 70 N flesh
firmness. Pears were held at -1.1°, 5°, 10°, or 20°C for up to
100 days then ripened at 20°C for 11 days. Unexpectently,
fruits stored at 20°C lost firmness and chlorophyll after...
The effect of some factors that can affect quality characteristics of broccoli
florets in storage was evaluated. Quality characteristics of broccoli florets with
different rates of field nitrogen (N) application (0, 90, 180, and 270 Kg N/ha from
urea) were evaluated in modified atmosphere packaging (MAP) (B-900 Cryovac
film) storage...
Pre-harvest foliar desiccation of Yellow Globe Danvers onions was
investigated as a means to improve harvest procedure and to reduce
storage losses. Foliar desiccation tended to increase storage disease
and sprouting incidence versus the untreated controls. Paraquat
approximately doubled storage disease in both years. Stoddard solvent
and ethephon increased disease...
Oregon's Willamette Valley sweet cherry growers have
developed a market for large, high quality, stem-on brining cherries.
The maturity indices pull force (PF), percent soluble solids (SS),
and weight (Wt) were chosen as being the most probable indicators of
maturity.
The rate of change of PF during the harvest period...
Volatile compounds of eight pear varieties were isolated and identified by
GC/MS. A total of 112 components were identified from headspace of intact fruits,
including 47 compounds reported for the first time in pear. The volatile profiles of
these pear varieties were characterized by esters, alcohols, hydrocarbons, aldehydes
and ketones....
Leaf and fruit seasonal mineral fluctuations, fruit endogenous
ethylene, maturity and quality of 'Starkspur Golden Delicious' apple
(Malus domestica Borkh.) on six rootstocks: Seedling, Mailing (M)1,
M7, M26, Mailing Merton (MM)106, OAR-1, in a high density orchard
with two levels of each of the soil applied potassium (K₂SO₄) and
nitrogen...
Field survivals of strawberry (Fragaria x ananassa) runner plants
dug from December to April in both 1979 and 1980 were above 9C% when
planted about May 1. When plants from the same digging dates were
planted in early June, survival of March-dug 'Olympus' declined to
88% and survival of late-April-dug...