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Books > Professional & Technical > Agriculture & farming > Horticulture
Selenium plays a significant role in preventing certain types of
cancer and cardiovascular diseases. The level of Selenium in the
human body depends on its concentration in food. In turn, the
content in vegetable crops is a function of the soil-plant system.
There are many countries in the world with low Selenium content in
the soil. The average daily human intake is thus limited through
food chain. Analysis of Selenium status suggests that fortification
of the soil substrate with Sodium Selenate, and foliar application
to agricultural crops are both effective means of Selenium
enrichment. Our intention for this publication is to present the
possibilities of augmenting Selenium content by biofortification of
soils and plants through differentiated nutrition. In the first
part of the monograph, the results of Selenium supplementation in
model vegetation experiments are presented. The next part of the
monograph presents the results of foliar supplementation of
Selenium in field conditions. This book is an outstanding reference
source for plant breeders and researchers engaged in
biofortification of horticulture crops. It is also beneficial to
agricultural companies and other stakeholders.
Following the enormous, decade-long success of his best-selling
Winery Technology and Operations, physical chemist and winemaker
Yair Margalit comes out with the successive, Concepts in Wine
Technology, fully updated and revised to meet the advances of
modern winemaking. Among the extended topics are fermentation, skin
contact, acid balance, phenolics, bottling, the use of oak and
quality control. He begins in the vineyard discussing proper
maturation, soil and climate, bunch health, vineyard disease states
and grape varieties. Next he tackles the pre-harvest with a careful
look at vineyard management and preparing the winery for harvest.
Dr. Margalit then outlines the entire process of harvesting, from
destemming, crushing and skin contact as it applies to both red and
white grapes to pressing, must correction and temperature control.
Fermentation is examined fully and includes a lengthy look at the
factors affecting malo-lactic fermentation and its pros and cons.
There is a huge chapter on cellar operations that deals with
racking, stabilization, fining, filtration, blending and
maintaining winery hardware, followed by sections on barrelling and
bottling. The final chapter pulls together the more general aspects
of wine technology, covering sulphur-dioxides, different forms of
wine spoilage and ways to ward them off, legal regulations and, one
of the most important and enigmatic compounds in wine, phenolics.
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