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"We See An Ever-Increasing Interest In Hydroponic Growing"
Quentin has noticed that this movement is already going on in Mexico. “Little by little, farmers and growers are changing their ways
Quentin Gomis, Biogrow Substrates,
On The Mexican Market
"Ever since I was a little boy, my dad took me to the greenhouses where he worked. From a very young age I knew everything about growing tomatoes: the planting, the seedlings, taking care of the growth, and picking them," says Quentin Gomis. He has just been hired as the new commercial manager for Biogrow Substrates in Mexico and, together with their local partner Toyo Kasei, will help this market grow. “I have always believed the future of agriculture should be sustainable, and now it’s the turn of my generation to help move the industry even more in that direction,” he says.
Responsible products
Quentin has noticed that this movement is already going on in Mexico. “Little by little, farmers and growers are changing their ways. The world is changing and consumers are becoming more and more demanding with regard to ecologically responsible products. It’s a big challenge for growers to change their ways of working and the transition to becoming sustainable can also be a synonym of “big investment."
However, growing in a more sustainable way also presents the growers with many advantages. “We see an ever-increasing interest in hydroponic growing, which is in large part due to growers noticing that they can produce up to three times more when using coco peat substrate compared to growing the conventional way.”
Growing demand, growing supply
A growing demand for substrate also means a growing supply, Quentin has noticed. “About 5 years ago, there were only a few coco peat substrate brands, now there must be around 20. So, we could say it is a crowded market and competition is tough, nonetheless, there are always gaps to fill as agricultural techniques are constantly evolving.” New techniques and equipment are what growers are looking for and that is where Biogrow comes in. Quentin will strengthen the service and technical support the company offers to their Mexican customers. “Growers from all over the world are now looking for solutions to help them respond to this growing demand for planet-friendly food. At Biogrow we produce substrates that come from a sustainable resource and respect the environment. At the same time, we accompany our customers all the way through the process from technical support to the delivery at the doors of the greenhouse. This includes a dedicated technical support and logistics team, on-time deliveries and of course maintaining the same substrate quality and efficiency year on year.”
Cooperative base
Quentin is well aware of the challenges and opportunities that growers face. “We give around-the-clock technical support to our customers and we know from first-hand experience what is required to optimize yield and productivity. At Biogrow, we are not only selling coco-based substrates, we are also growers working for growers,” he says, referring to the cooperative that forms the base of the company. “In France, where our head office is located, our primary activity for decades has been growing fruit and vegetables. It’s thanks to this long-established growing experience that we’ve been able to develop our substrate range over the last 25 years."
“Ultimately, we want to build on the solid base we already have here in Mexico, strengthen the link to our customers and accompany them over the years to come, so that they can grow better and more sustainably. A win/win situation for everyone involved,” he concludes. “It really is an exciting time to be part of this industry and see all the positive changes that are happening, especially regarding the industry-wide drive towards sustainability.”
For more information:
Bio-Grow
Quentin Gomis
q.gomis@bio-grow.com
www.bio-grow.com
Toyo Kasei
www.toyokasei.com.mx
Publication date: Tue 6 Apr 2021
Author: Arlette Sijmonsma
© HortiDaily.com
Disease-Causing Bacteria Can Grow on Hydroponic Microgreen Mats
Salmonella enterica and Listeria monocytogenes are two bacteria that can make you sick when eating contaminated produce. It turns out, some microgreen grow mats might be a breeding ground for these bacteria
Posted on July 2, 2020, by Gina Misra
Salmonella enterica and Listeria monocytogenes are two bacteria that can make you sick when eating contaminated produce. It turns out, some microgreen grow mats might be a breeding ground for these bacteria.
You may be like a lot of people and associate foodborne illness with eating improperly cooked meat. Did you know that raw vegetables can also carry foodborne illness? Bacteria and viruses get on produce in a variety of ways: by food handlers, contaminated water, or soil fertilized with untreated manure. Romaine lettuce grown in Arizona made the news in 2018 because of widespread E. coli contamination. Sprouts, another popular health food, have been involved in 74 outbreaks of (mostly) Salmonella since 1973. Turns out these nasty pathogens are not just reserved for chicken and beef! There is no cooking step to kill the bacteria or virus on produce before it goes into your salad. Sometimes washing doesn’t even help, so prevention is key.
Microgreens are a hot new leafy green on the market. A microgreen is the first 2 to 3-inch (5 to 7-cm) tall shoot from a germinating vegetable seed. They are grown indoors in trays or hydroponics systems in soil, soil-substitutes, or without any rooting medium at all. Scientists understand a lot about how bacteria get to leafy greens from soil, but little about contamination in indoor farms. Are indoor farms safer if they don’t use dirt? We wanted to find out.
This is what a typical microgreen hydroponic system looks like. Source: Wikimedia Commons, by Kchittock0511 / CC BY-SA
Microgreen growers do use soil. However, they also use materials such as coco coir (made from coconut husks), Biostrate(TM) mats, plastic, perlite, rice hulls, and hemp in soil-free indoor systems. Our hypothesis was that if soil can transfer bacteria to lettuce, other growing materials can too.
E.coli and Salmonella survived better in hydroponic nutrient solution compared to soil, so we wondered if there would also be differences among soil-free materials. Within the last few years, there have been close to 10 microgreen recalls over diarrhea-causing Salmonella and Listeria monocytogenes found during routine testing. So, we decided to compare the survival of these two pathogens among popular soil-free growing materials to see if the bacteria lived longer on any of them.
An example of a Biostrate mat. Source: The author | Creative Commons Share Alike 4.0
We watered multiple samples of coco coir, Biostrate(TM) mats, hemp mats, and peat-based potting mix and contaminated them with Salmonella and Listeria monocytogenes. To imitate microgreen growing conditions, we left them on the lab bench for 10 days. We took samples from the mats on the first day, and then at 24 hours, 3 days, 6 days, and 10 days to measure the growth of bacteria. Each sample was spread onto Petri dishes containing a gel called agar, enriched with nutrients preferred by each species. The idea behind this classic microbiology technique is that if any cells from the samples were viable, they would multiply on the Petri dishes and form colonies. The colonies are easy to see with the naked eye, and each represents one cell from the original sample.
We found out that Biostrate(TM) mats and hemp mats supported the growth of these two pathogens, while coco coir and peat potting mix did not. In fact, on Biostrate(TM) and hemp, Salmonella and Listeria levels increased after 24 hours and then maintained their original levels for 10 days. On peat and coco coir, Listeria began to die off after the third day and was undetectable on coco coir by the 10th day. Salmonella survived better on all the materials, but on the 10th day, there were 10 times fewer colonies on peat and coco coir compared to the two mats.
Both pathogens showed poorer survival on peat and coco coir compared to no media at all. That means there may be some feature of the peat and coco coir that suppresses the growth of these bacteria. Understanding if that is true, and if so, what exactly that feature is will require more experiments.
It is necessary to point out that because this experiment did not involve microgreens, we still don’t know if microgreens grown in Biostrate(TM) and hemp actually do take up greater amounts of bacteria. These tests are underway! However, this preliminary information may be useful to indoor growers. Until we know more, microgreen growers may want to avoid using fibrous mats, perform additional sanitation steps, or do more testing to keep their customers safe.
Posted in Agriculture, Biology, By Science Writers, By Scientists, Food Science, Microbiology, Science NewsTagged agriculture, Biostrate, coco coir, contamination, food safety, food science, growing media, hemp, hydroponics, indoor farming, leafy greens, Listeria, Microgreens, peat, Salmonella
Study Information
Study published on: May 12, 2020
Study author(s): Gina Misra and Kristen E. Gibson
The study was done at: University of Arkansas
The study was funded by: National Institute of Food and Agriculture, U.S. Department of Agriculture (USDA NIFA) and University of Arkansas
Raw data availability: Available from the author upon request by email.
Featured image credit: Jenny Nichols WallpaperFlare.com