Biodegradation of selected substances used in liquid fertilizers as an element of Life Cycle Assessment

Borowiec, M.; Huculak, M.; Hoffmann, J.

doi:10.2478/v10026-009-0001-6

Cited by 9 publications

(3 citation statements)

References 5 publications

(2 reference statements)

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“…l -Glutamic acid, N,N-diacetic acid ( GLDA ) is a readily biodegradable alternative to EDTA. This molecule could be considered as an environmentally friendlier alternative to EDTA, with a relatively high chelation affinity for relevant trace metal nutrients and with a much lower environmental persistency, with more than 60% being degraded within 28 d ( Borowiec et al, 2009 ; Kołodyńska, 2013 ; Wu et al, 2015 ). To date, little information is available on the efficacy of GLDA toward enhancing dietary trace mineral availability in animals ( ECHA, 2010 ).…”

Section: Introductionmentioning

confidence: 99%

Efficacy of l-glutamic acid, N,N-diacetic acid to improve the dietary trace mineral bioavailability in broilers

Boerboom

Busink²,

Smits³

et al. 2020

Journal of Animal Science

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Trace minerals are commonly supplemented in the diets of farmed animals in levels exceeding biological requirements, resulting in extensive fecal excretion and environmental losses. Chelation of trace metal supplements with ethylenediaminetetraacetic acid (EDTA) can mitigate effects of dietary antagonists by preserving the solubility of trace minerals. Lack of EDTA biodegradability, however, is of environmental concern. L-glutamic acid, N,N-diacetic-acid (GLDA) is a readily biodegradable chelating agent that could be used as a suitable alternative to EDTA. The latter was tested in sequential dose response experiments in broiler chickens. Study 1 compared the effect of EDTA and GLDA in broilers on supplemental zinc availability at three levels of added zinc (5, 10 and 20 ppm) fed alone or in combination with molar amounts of GLDA or EDTA equivalent to chelate the added zinc, including negative (no supplemental zinc) and positive (80 ppm added zinc) control treatments. Study 2 quantified the effect of GLDA on the availability of native trace mineral feed content in a basal diet containing no supplemental minerals and supplemented with three levels of GLDA (54, 108 and 216 ppm). In study 1, serum and tibia Zn clearly responded to the increasing doses of dietary zinc with a significant response to the presence of EDTA and GLDA (P<0.05). These results are also indicative of the equivalent nutritional properties between GLDA and EDTA. In study 2, zinc levels in serum and tibia were also increased with the addition of GLDA to a basal diet lacking supplemental trace mineral, where serum zinc levels were 60% higher at the 216 ppm inclusion level. Similar to the reported effects of EDTA, these studies demonstrate that dietary GLDA may have enhanced zinc solubility in the gastrointestinal tract and, subsequently enhanced availability for absorption, resulting in improved nutritional zinc status in zinc deficient diets. As such, GLDA can be an effective nutritional tool to reduce supplemental zinc levels in broiler diets thereby maintaining health and performance while reducing the environmental footprint of food producing animals.

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Section: Introductionmentioning

confidence: 99%

Efficacy of l-glutamic acid, N,N-diacetic acid to improve the dietary trace mineral bioavailability in broilers

Boerboom

Busink²,

Smits³

et al. 2020

Journal of Animal Science

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“…This makes the ecological footprint of GLDA significantly lower than other chelators such as EDTA (Wang et al, 2019). Toxicity tests have shown that GLDA has a low toxicity level and it has a relatively high application potential (Borowiec et al, 2009;. The biodegradation tests of the L-form of GLDA have shown that it degrades much faster than for example EDTA, with more than 60% being degraded within 28 days (Tang et al, 2017;Wang et al, 2018).…”

Section: L-glutamic Acid Nn-diacetic Acid (Glda)mentioning

confidence: 99%

“…L-glutamic acid N,N-diacetic-acid (GLDA) is a readily biodegradable alternative to EDTA. This molecule could be considered as an environmental friendlier alternative to EDTA, with a relatively high chelation affinity for relevant trace metal nutrients and with a much lower environmental persistency, with more than 60% being degraded within 28 days (Borowiec et al, 2009;. To date, little information is available on the efficacy of GLDA towards enhancing dietary trace mineral availability in animals (ECHA, 2010).…”

Section: Introductionmentioning

confidence: 99%

Trace mineral chelation for sustainable animal nutrition : enhancing zinc availability with L-glutamic acid N,N-diacetic acid

Boerboom¹

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Chapter 1 General introduction Chapter 2 Efficacy of L-glutamic acid N,N-diacetic acid to improve the dietary trace mineral bioavailability in broilers Chapter 3 Effect of L-glutamic acid N,N-diacetic acid on the availability of dietary zinc in broiler chickens Chapter 4 L-glutamic acid N,N-diacetic acid has a high tolerance level for broilers and poses no risk for consumer food safety Chapter 5 Dietary L-glutamic acid N,N-diacetic acid affects short term zinc homeostasis in weaned piglets at different levels of dietary zinc

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2020

Sustainable Metal Extraction From Waste Streams

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Biodegradation of selected substances used in liquid fertilizers as an element of Life Cycle Assessment

Cited by 9 publications

References 5 publications

Efficacy of l-glutamic acid, N,N-diacetic acid to improve the dietary trace mineral bioavailability in broilers

Efficacy of l-glutamic acid, N,N-diacetic acid to improve the dietary trace mineral bioavailability in broilers

Trace mineral chelation for sustainable animal nutrition : enhancing zinc availability with L-glutamic acid N,N-diacetic acid

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