Brewers' spent grain: generation, characteristics and potential applications

Mussatto, Solange I.; Dragone, Giuliano; Roberto, Inês Conceição

doi:10.1016/j.jcs.2005.06.001

Cited by 844 publications

(852 citation statements)

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“…Even though snack products made of whole grain barley are not yet common, barley flour has been used in several extrusion studies (Altan et al 2008a(Altan et al , b, c, 2009Faraj et al 2004;Huth et al 2000;Kirjoranta et al 2012;Vasanthan et al 2002). BSG, a waste fraction of malting of barley, is a common by-product of the brewing industry (Mussato et al 2006). It is a problematic product since it contains a lot of water (77-81 %), some fermentable sugars and enzyme activity (Mussato et al 2006;Stojceska et al 2008).…”

Section: Introductionmentioning

confidence: 99%

“…BSG, a waste fraction of malting of barley, is a common by-product of the brewing industry (Mussato et al 2006). It is a problematic product since it contains a lot of water (77-81 %), some fermentable sugars and enzyme activity (Mussato et al 2006;Stojceska et al 2008). That is why it must be stored at refrigerator temperature and used during a short period of time in order to avoid spoilage (Mussato et al 2006).…”

Section: Introductionmentioning

confidence: 99%

“…It is a problematic product since it contains a lot of water (77-81 %), some fermentable sugars and enzyme activity (Mussato et al 2006;Stojceska et al 2008). That is why it must be stored at refrigerator temperature and used during a short period of time in order to avoid spoilage (Mussato et al 2006). BSG is rich in dietary fiber and protein (about 70 and 20 % of solids, respectively) and it has a high mineral content (Mussato et al 2006).…”

Section: Introductionmentioning

confidence: 99%

“…That is why it must be stored at refrigerator temperature and used during a short period of time in order to avoid spoilage (Mussato et al 2006). BSG is rich in dietary fiber and protein (about 70 and 20 % of solids, respectively) and it has a high mineral content (Mussato et al 2006). The dietary fiber of BSG consists of water insoluble (lignin and cellulose) and water soluble (non-cellulosic polysaccharides, mostly arabinoxylans) dietary fiber.…”

Section: Introductionmentioning

confidence: 99%

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Effects of process parameters on the properties of barley containing snacks enriched with brewer’s spent grain

2015

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Brewer's spent grain (BSG), a by-product of malting of barley in the production of malt extract, was used as an ingredient in extruded barley-based snacks in order to improve the nutritional value of the snacks and widen the applications of this by-product in food sector. The effects of the extrusion parameters on the selected properties of the snacks were studied. Snacks with different ingredients including whole grain barley flour, BSG, whey protein isolate (WPI), barley starch and waxy corn starch were produced in 5 separate trials using a co-rotating twin-screw extruder. Extrusion parameters were water content of the mass (17-23 %), screw speed (200-500 rpm) and temperature of the last section and die (110-150°C). Expansion, hardness and water content of the snacks were determined. Snacks containing barley flour and BSG (10 % of solids) had small expansion and high hardness. Addition of WPI (20 % of solids) increased expansion only slightly. Snacks with high expansion and small hardness were obtained when part of the barley flour was replaced with starch (barley or waxy corn). Yet, the highest expansion and the smallest hardness were achieved when barley flour was used with barley starch and WPI without BSG. Furthermore, expansion increased by increasing screw speed and decreasing water content of the mass in most of the trials. This study showed that BSG is a suitable material for extruded snacks rich in dietary fiber. Physical properties of the snacks could be improved by using barley or waxy corn starch and WPI.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Effects of process parameters on the properties of barley containing snacks enriched with brewer’s spent grain

2015

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“…Million of tonnes of BSG are produced annually across Europe and common applications are direct disposal in a landfill or use as an animal feed. BSG is a lignocellulosic material composed of AX (28%), cellulose (17%) and lignin (28%) [4,5]. As the germinated grain during brewing has already been submitted to a hot water extraction process, the BSG AX are mostly not extractable with water.…”

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confidence: 99%