scholarly journals Polydimethylsiloxane Replicas Efficacy for Simulating Fresh Produce Surfaces and Application in Mechanistic Study of Colloid Retention

2019 ◽  
Vol 84 (3) ◽  
pp. 524-531 ◽  
Author(s):  
Taozhu Sun ◽  
Volha Lazouskaya ◽  
Yan Jin
2001 ◽  
Vol 120 (5) ◽  
pp. A145-A145
Author(s):  
C CHO ◽  
Y YE ◽  
E LIU ◽  
V SHIN ◽  
N SHAM

Planta Medica ◽  
2014 ◽  
Vol 80 (16) ◽  
Author(s):  
L Wang ◽  
L Shan ◽  
G Cui ◽  
Y Chen ◽  
J li ◽  
...  
Keyword(s):  

2018 ◽  
Author(s):  
Sandepan Maity ◽  
Robert Flowers

Despite the broad utility and application of SmI<sub>2</sub>in synthesis, the reagent is used in stoichiometric amounts and has a high molecular weight, resulting in a large amount of material being used for reactions requiring one or more equivalents of electrons. We report mechanistic studies on catalytic reactions of Sm(II) employing a terminal magnesium reductant and trimethyl silyl chloride in concert with a non-coordinating proton donor source. Reactions using this approach permitted reductions with as little as 1 mol% Sm. The mechanistic approach enabled catalysis employing HMPA as a ligand, facilitating the development of catalytic Sm(II) 5-<i>exo</i>-<i>trig </i>ketyl olefin cyclization reactions.


2019 ◽  
Author(s):  
Chem Int

Activated carbon was prepared from molasses, which are natural precursors of vegetable origin resulting from the sugar industry. A simple elaboration process, based on chemical activation with phosphoric acid, was proposed. The final product, prepared by activation of molasses/phosphoric acid mixture in air at 500°C, presented high surface area (more than 1400 m2/g) and important maximum adsorption capacity for methylene blue (625 mg/g) and iodine (1660 mg/g). The activated carbon (MP2(500)) showed a good potential for the adsorption of Cr(VI), Cu(II) and Pb(II) from aqueous solutions. The affinity for the three ions was observed in the following order Cu2+ Cr6+ Pb2+. The process is governed by monolayer adsorption following the Langmuir model, with a correlation coefficient close to unity.


Author(s):  
Jennifer Buccino ◽  
Leslie Whittington-Carter

In 2013, 4 partner organizations: Dietitians of Canada (DC); Ontario Fruit and Vegetable Growers Association; Ontario Ministry of Agriculture, Food and Rural Affairs; and Ontario Ministry of Education created “Fresh from the Farm” (FFF), a healthy fundraiser for Ontario Schools. FFF was designed to support the Ontario government’s School Food and Beverage Policy and Local Food Act and to provide a feasible alternative for less healthy fundraising options. This paper outlines the program successes and challenges over the 6 years of DC’s involvement. After 6 years, over 1700 schools successfully participated in FFF and over $2 million has been paid to Ontario farmers for product and distribution. The average participating school has generated $2040 in sales towards their fundraising efforts, equating to 770 kg (1700 lbs) of fresh produce per school. Schools reported high satisfaction with FFF, with over 90% of participating schools enrolling in subsequent years. The main reasons for satisfaction included: easy to implement, profitable, offers a healthy alternative to “traditional” fundraising programs, and provides great value for cost. The main challenges were logistics of sourcing and delivery, higher than anticipated costs that made the financial model less feasible than predicted, and competition from other fundraisers.


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