The effect of nitrogen level on the performance of malting barley varieties during germination

被引：23

作者：

Agu, RC ^{[1
]}

Palmer, GH ^{[1
]}

机构：

[1] Heriot Watt Univ, ICBD, Edinburgh, Midlothian, Scotland

来源：

JOURNAL OF THE INSTITUTE OF BREWING | 2001年 / 107卷 / 02期

关键词：

barley high nitrogen; low nitrogen; alpha-amylase; beta-amylase; extract; beta-glucan;

D O I：

10.1002/j.2050-0416.2001.tb00081.x

中图分类号：

TS2 [食品工业];

学科分类号：

0832 ;

摘要：

The malting characteristics of high and low nitrogen barleys were compared. Results confirmed that low nitrogen facilitates malting rate and extract development. Modification rate was not related to beta -glucan content. In general, these low nitrogen barleys and high nitrogen barleys had similar levels of alpha -amylase but high nitrogen barleys tend to have higher levels of beta -amylase. Since barleys of similar nitrogens had different levels of alpha -amylase and beta -amylase, nitrogen may not be a reliable indicator of the potential of the grain to develop amylolytic enzymes.

引用

页码：93 / 98

页数：6

共 25 条

[1] Enzymic breakdown of endosperm proteins of sorghum at different malting temperatures [J].

Agu, RC ;

Palmer, GH .

JOURNAL OF THE INSTITUTE OF BREWING, 1996, 102 (06) :415-418

[2]

Agu RC, 2000, PROCESS BIOCHEM, V35, P497, DOI 10.1016/S0032-9592(99)00092-8

[3] Some relationships between the protein nitrogen of barley and the production of amylolytic enzymes during malting [J].

Agu, RC ;

Palmer, GH .

JOURNAL OF THE INSTITUTE OF BREWING, 1998, 104 (05) :273-276

[4]

AGU RC, 1997, J I BREWING, V34, P101

[5]

AGU RC, 1998, BREWERS DIG, V17, P30

[6] REASSESSMENT OF CHEMICAL STRUCTURE OF BARLEY AND WHEAT STARCH GRANULES [J].

BATHGATE, GN ;

PALMER, GH .

STARKE, 1972, 24 (10) :336-&

[7]

BISHOP LR, 1928, J I BREWING, V103, P25

[8] HYDROLYSIS OF ALPHA NAPHTHYL ACETATE AND L-LEUCYL NAPHTHYLAMIDE BY BARLEY ENZYMES [J].

BURGER, WC ;

PRENTICE, N ;

MOELLER, M ;

KASTENSCHMIDT, J .

PHYTOCHEMISTRY, 1970, 9 (01) :33-+

[9] Homogeneity of the friable flour of malting barley [J].

Darlington, HF ;

Palmer, GH .

JOURNAL OF THE INSTITUTE OF BREWING, 1996, 102 (03) :179-182

[10]

ENARI TM, 1967, P EUR BREW CONV C, P37

← 1 2 3 →