Barley Grain as a Source of Health-Beneficial Substances

Abstract

Abstract:Barley is an excellent source of non-starch polysaccharides, i.e. soluble fiber (β-glucans and arabinoxylans), it contains many important vitamins (vitamin E and vitamin B-complex) and enzymes (superoxide dismutase, catalase). A set of the malting varieties and a line KM 1057 had statistically significantly higher content of arabinoxylans (4.40-5.58%) compared to the other KM lines (CZ origin) and the variety Merlin (Canada origin) (3.51-3.64%). Content of β-glucans in grain of varieties/lines was in a reverse order. The variety Merlin and lines KM (4.10-6.08%) had higher β-glucan content compared to the malting varieties and lines KM 1057 (2.78-4.02%). In the studied set of varieties/lines, strong negative correlation (r = -0.78**) between content of β-glucans and arabinoxylans was determined.

Malting quality of old barley varieties.

“…β-Glucans content in caryopses achieved on average 5.1 %. β-Glucan content was higher than in the current malting varieties [5,6]. Half of the studied old varieties had β-glucan content in a caryopsis higher than 5 %, the variety Diamant showed β-glucan content of 6 %.…”

“…The highest arabinoxylan level was again the recorded in the variety Diamant (7.1 %). Comparison of arabinoxylan contents showed higher values in the old varieties than in the current ones [6]. Sladovnická kvalita starých odrůd ječmene β-Amylasa je obsažena v aleuronové vrstvě obilky v albuminové frakci bílkovin.…”

“…Obsah β-glukanů v obilkách dosahoval v průměru 5,1 %. Ve srovnání se současnými sladovnickými odrůdami [5,6] je obsah β-glukanů vyšší. Polovina sledovaných starých odrůd měla obsah β-glukanů v obilce vyšší než 5 %, přičemž odrůda Diamant vykázala obsah β-glukanů na úrovni 6 %.…”

“…Nejvyšší obsah arabinoxylanů měla i v tomto případě odrůda Diamant (7,1 %). Také obsah arabinoxylanů byl ve srovnání se současnými sladovnickými odrůdami vyšší [6]. and kilning [3].…”

Utilization of the Linear Mode of MALDI-TOF Mass Spectrometry in the Study of Glycation During the Malting Process

“…Tolar (Czech origin) and Jersey (Dutch origin) were chosen as being representative of very good malting quality barley varieties 5,21 . Tolar is one of the varieties recommended for Czech Beer production, while Jersey is recommended for malt export.…”