Life Sciences Commons^™

Literature Review - Pigments In Plant Health, Gregory Keith Bartley Jr.

Gregory Keith Bartley Jr.

The solar radiation received at the Earth’s surface helps power the photochemical processes in photosynthesis. However, under sunlight, photosynthetic organisms are unavoidably exposed to potentially harmful levels of ultraviolet and visible light radiation. Consequently, plants have developed many mechanisms for the avoidance and dissipation of excess light energy. The growth of crops under increased solar irradiance during sub- and supra-optimal temperature conditions is an obstacle for increasing seasonal crop production in the transition zone. New methods for reducing the photoinhibitory effects of solar irradiation have been observed in the field of turfgrass. Through the application of pigment compounds to the …

Effect Of Roasting Conditions On Hardness, Moisture Content And Colour Of Pistachio Kernels, Ahmad Shakerardekani

Ahmad Shakerardekani

Roasting of whole-kernels is an important step in the production of pistachio paste. The effect of

hot air roasting temperatures (90-190°C) and times (5-65 min) on the hardness, moisture content and colour

attributes (‘L’, ‘a’ and ‘b’ values and yellowness index) of both whole-kernel and ground-state were investigated

using response surface methodology (RSM). Increases in roasting temperature and time caused a decrease in all

the responses except for ‘a’ value of ground-state. The interaction and quadratic models sufficiently described

the changes in the hardness and colour values, respectively. The result of RSM analysis showed that hardness

and colour attributes (‘L’ …

Postharvest Physico-Chemical And Mechanical Changes In Jambu Air (Syzygium Aqueum Alston) Fruits, Amru Bin Nasrulhaq Boyce

Amru Bin Nasrulhaq Boyce

Little data is available in the scientific literature on postharvest changes taking place in Syzygium aqueum fruits, an increasingly popular fruit in the Asian region. In this study the postharvest physico-chemical and mechanical properties, namely, fruit color, weight loss, pulp firmness, total soluble solids, pH and titratable acidity were determined during the postharvest storage period under ambient conditions of Syzygium aqueum fruits. It was observed that weight loss, total soluble solids (TSS) and pH of the jambu air fruits increased with time whilst pulp firmness and the color index of the fruits decreased. Analysis of the antioxidant activity, determined in …