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Fayetteville, AR, United States

Adams J.P.,Louisiana Tech University | Lingbeck J.M.,Sea Star International, Llc | Martin E.M.,University of Arkansas
IForest | Year: 2015

Sweetgum (Liquidambar styraciflua L.) is the only species of its genus in the Western hemisphere. The species is a relatively early successional species with wide seed dispersal, fast growth and is considered one of the most adaptable tree species in North America, growing across a wide range of soil types, altitudes, and hydrologic conditions. This species has routinely been considered a lesser desired species by many forest managers trying to grow tree plantations or even in natural stands because the species tends to rapidly invade and dominate a site. However, because of sweetgum’s adaptability, ease of propagation and field planting, and fast growth rate, the tending of sweetgum as a potential crop for improved markets has been reinvigorated. Managing sweetgum also opens the possibility of development of new products and markets that supplement the traditional markets and can produce further value-added products. Increasingly, sweetgum is not viewed with as much antipathy amongst foresters and its potential as valuable resources is being rediscovered. © SISEF. Source

Agency: Department of Agriculture | Branch: | Program: SBIR | Phase: Phase I | Award Amount: 90.00K | Year: 2010

We propose to improve the sustainability and profitability of small organic pecan farmers by developing an agricultural enterprise from their pecan shell waste that will produce organic, value-added, specialty antimicrobials--specifically to address the needs of organic poultry industry. Liquid smoke generated from organic pecan shells represents the ideal combination of a highly effective organic antimicrobial that can be produced in large quantities and low cost. It can be used not only reduce/eliminate food pathogens but, just as importantly, safely extend the shelf life of fresh organic products, such as poultry. Our long-term goal for this pilot regional project is to build a small business that engages a network of small farms, including organic pecan growers, small organic poultry processors, and organic retailers that can serve as a successful economic blueprint for similar rural small farmer communities across the nation.

Lingbeck J.M.,Sea Star International, Llc | Cordero P.,Sea Star International, Llc | Cordero P.,Center for Food Safety | O'Bryan C.A.,Center for Food Safety | And 6 more authors.
Journal of Food Protection | Year: 2014

Condensed smoke or liquid smoke (LS) and lauric arginate (LAE) are antimicrobials used in food preservation. They have demonstrated abilities to reduce or inhibit pathogenic and spoilage organisms. Few studies, however, have reported on the effectiveness of LS or LAE over the range of temperatures typically encountered in food marketing channels. Therefore, the effects of temperature on the antimicrobial properties of two commercial LS fractions, an LS derived from pecan shells, and LAE against two common foodborne pathogens, Listeria and Salmonella, were investigated. The MICs of the three LS samples and LAE were measured at 4, 10, and 37uC for Listeria monocytogenes strains 2045 (Scott A, serotype 4b) and 10403S (serotype 1/ 2a) and two strains of Listeria innocua, a well-established surrogate, and at 10, 25, and 37uC for Salmonella enterica serovar Typhimurium and Salmonella enterica serovar Heidelberg. The MICs for LS against Listeria ranged from 3 to 48% (vol/vol), with higher MICs seen with lower temperatures. The MICs for LS on Salmonella ranged from 3 to 24%. Values for LAE ranged between 0.004 and 0.07% for both pathogens, and like LS, higher MICs were always associated with lower incubation temperatures. Understanding how storage temperature affects the efficacy of antimicrobials is an important factor that can contribute to lowering the hurdles of use levels and costs of antimicrobials and ultimately improve food safety for the consumer. Copyright © International Association for Food Protection. Source

Samant S.S.,University of Arkansas | Crandall P.G.,University of Arkansas | Crandall P.G.,Sea Star International, Llc | O'Bryan C.,University of Arkansas | And 3 more authors.
Poultry Science | Year: 2015

Antimicrobial agents are added to poultry products after slaughter to prevent the growth of pathogenic and spoilage microorganisms and to extend the shelf-life of these products. Antimicrobials can be either natural or chemical, which may affect the sensory attributes at elevated concentrations, such as surface color, odor, flavor, taste, and texture of the poultry products. Thus, when selecting antimicrobials for use in poultry processing, it is vital to consider the antimicrobial-induced changes in sensory aspects from the consumers' perspectives. In spite of its importance, there has been no systematic review on the influences of antimicrobials on sensory aspects of poultry products. This paper reviews the major antimicrobial agents used in the poultry processing industry and their effects on sensory aspects of the poultry products. © 2015 Poultry Science Association Inc. Source

Lingbeck J.M.,Sea Star International, Llc | O'Bryan C.A.,University of Arkansas | Martin E.M.,Sea Star International, Llc | Martin E.M.,University of Arkansas | And 3 more authors.
Pharmacognosy Reviews | Year: 2015

Sweetgum trees are large, deciduous trees found in Asia and North America. Sweetgum trees are important resources for medicinal and other beneficial compounds. Many of the medicinal properties of sweetgum are derived from the resinous sap that exudes when the outer bark of the tree has been damaged. The sap, known as storax, has been used for centuries to treat common ailments such as skin problems, coughs, and ulcers. More recently, storax has proven to be a strong antimicrobial agent even against multidrug resistant bacteria such as methicillin-resistant Staphylococcus aureus. In addition to the sap, the leaves, bark, and seeds of sweetgum also possess beneficial compounds such as shikimic acid, a precursor to the production of oseltamivir phosphate, the active ingredient in Tamiflu®-an antiviral drug effective against several influenza viruses. Other extracts derived from sweetgum trees have shown potential as antioxidants, anti-inflammatory agents, and chemopreventive agents. The compounds found in the extracts derived from sweetgum sap suppress hypertension in mice. Extracts from sweetgum seeds have anticonvulsant effects, which may make them suitable in the treatment of epilepsy. In addition to the potential medicinal uses of sweetgum extracts, the extracts of the sap possess antifungal activity against various phytopathogenic fungi and have been effective treatments for reducing nematodes and the yellow mosquito, Aedes aegypti, populations thus highlighting the potential of these extracts as environment-friendly pesticides and antifungal agents. The list of value-added products derived from sweetgum trees can be increased by continued research of this abundantly occurring tree. © 2015, Medknow. All rights reserved. Source

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