A kind of brewer's grains biscuit with high protein and dietary fibre and preparation method thereof
(1) technical field under
The present invention relates to the processing technique field of plain edition tough biscuit, purpose is to study a kind of novel tough biscuit that contains high-protein dietary fiber brewex's grains (BSG).
(2) background technology
In China, biscuit is as a kind of public leisure class bakery product, and it is big to have a consumption figure, long shelf-life, and accumulating is convenient, and nutritious, old children is all suitable, and the industrialization degree height is easy to carry out advantages such as fortification processing.The interpolation in biscuits of soybean, corn, rice bran, wheat-bran dietary fiber not only can improve the processing characteristics of dough, improve the loose degree of product, give the new color and luster of biscuit, local flavor and nutritive peculiarity, and can also reduce the cost of material of product, also provide theoretical foundation simultaneously for the application of high-protein dietary fiber brewex's grains in biscuit production.
Brewex's grains are main accessory substances of brewer's wort saccharification in the beer process, account for 85% of the total accessory substance of beer.Along with the expansion of brewing industry scale, the output of brewex's grains also rapidly increases.The brewex's grains butt contains about 25% protein and about 60% dietary fiber, is excellent protein and dietary fiber sources.Existing researching and analysing shows that the brewex's grains nutritional labeling is abundant, can compare favourably with cereal grain.Western countries just begin to pay much attention to the comprehensive utilization of brewex's grains as far back as the seventies in last century.At present, China mainly concentrates on feed processing, microbial enzyme production and edible fungus culturing etc. in brewex's grains research, how to open up the Peak output approach that brewex's grains utilize, prevent that vinasse from polluting, turn waste into wealth that the added value that effectively improves brewex's grains awaits further to study.
(3) summary of the invention
The brewex's grains nutritional labeling is abundant, protein and dietary fiber content height.The present invention adds the high-protein dietary fiber brewex's grains in wheat flour production plain edition tough biscuit, and as the principal goods material, unclassified stores is as auxiliary material with wheat flour, brewex's grains for its composition of raw materials, and each raw material proportioning is:
Common wheat powder 47.0%~57.0% (m/m)
Brewex's grains 3.0%~10.0% (m/m)
Vegetable oil 6.0%~8.0% (m/m)
Syrup 12.5%~17.5% (m/m)
Leavening agent 1.4%~2.1% (m/m)
Milk powder 1.7% (m/m)
Vanillic aldehyde 0.06% (m/m)
Monoglyceride 0.06% (m/m)
Sodium pyrosulfite 0.08% (m/m)
Water 12.5%~16.5% (m/m)
Described syrup is the aqueous solution of white granulated sugar, and the mass ratio of white granulated sugar and water is 2: 1.
Described leavening agent is the mixture of baking powder, ammonium hydrogencarbonate and sodium acid carbonate, and the mass ratio of baking powder, carbonic hydroammonium and sodium acid carbonate is 1: 4: 2, and promptly baking powder 0.3%, carbonic hydroammonium 1.2%, sodium acid carbonate 0.6%.
The preparation method of brewer's grains biscuit with high protein and dietary fibre is as follows:
1 raw material is handled the brewex's grains of drying is pulverized back screening processing (〉=80 order).Sodium pyrosulfite is dissolved in 2.5% the water and makes sodium metabisulfite solution, standby.
The modulation of 2 doughs takes by weighing wheat flour, brewex's grains, milk powder, baking powder by the raw material proportioning and joins successively in the dough mixing machine, and low speed stirs evenly.Take by weighing carbonic hydroammonium, sodium acid carbonate, monoglyceride, vanillic aldehyde also with remaining water (40 ℃~50 ℃ of temperature) dissolving, slowly join in the dough mixing machine high-speed stirred 12min after mixing with syrup and vegetable oil.Treat that gluten begins to take shape evenly adding sodium metabisulfite solution of back, continue to be stirred to established gluten is made surmounting its elastic limit gradually under the effect of machine oar till the elasticity reduction.
3 rollings leave standstill 20~30min with the dough that modulates, and to eliminate the inner tensions that dough formed because of stretching in the stirring phase, reduce the viscosity and the elasticity of dough, improve Products Quality and dough sheet processing performance.Dough is evenly sent into the feed well of biscuit production line, forms the thickness homogeneous through three rollings, and form is smooth, smooth surface, the dough sheet of quality exquisiteness.
4 develop and print the moulding dough sheet cellular type mould rolling that wears long, and make surperficial fine-meshed biscuit base.
5 baking temperatures that bake biscuit production line five districts are set at 210 ℃, 200 ℃, 200 ℃, 185 ℃, 180 ℃ successively, and the time of baking is 6.0min~7.5min.
It is 20 ℃~30 ℃ that biscuit after 6 cooling packings bake naturally cools to temperature, packs.
The present invention produces tough biscuit with the high-protein dietary fiber brewex's grains as major ingredient, has kept the good morphological feature of biscuit, and regular edges is neat; Given biscuit fresh local flavor and color and luster, wheat fragrance is outstanding; Increased concentrations of nutrient such as biscuit protein, dietary fiber, mouthfeel is crisp; Also improved simultaneously the added value of brewex's grains, turned waste into wealth.
(4) specific embodiment
Embodiment 1
Raw material variety and consumption (kg or g) are:
Wheat flour 56
Brewex's grains 4
Vegetable oil 7.5
Syrup 14
Leavening agent 2.1
Milk powder 1.7
Vanillic aldehyde 0.06
Monoglyceride 0.06
Sodium pyrosulfite 0.08
Water 14.5
Described syrup is the aqueous solution of white granulated sugar, and the mass ratio of white granulated sugar and water is 2: 1.
Described leavening agent is by baking powder 0.3, carbonic hydroammonium 1.2, and sodium acid carbonate 0.6 is formed.
Preparation method is as follows:
1 raw material is handled 80 mesh sieve divisional processing is crossed in the brewex's grains pulverizing back of drying.Sodium pyrosulfite with 0.08 is dissolved in earlier in 2.5 the water makes sodium metabisulfite solution, standby.
2 doughs modulation weighing wheat flour, brewex's grains, milk powder, baking powder also join in the dough mixing machine successively, and low speed stirs evenly.Take by weighing carbonic hydroammonium, sodium acid carbonate, monoglyceride and vanillic aldehyde also with remaining water (40 ℃~50 ℃ of temperature) dissolving, slowly join in the dough mixing machine high-speed stirred 12min after mixing with syrup and vegetable oil.Treat that gluten begins to take shape evenly adding sodium metabisulfite solution of back, continue to be stirred to established gluten is made surmounting its elastic limit gradually under the effect of machine oar till the elasticity reduction.
3 rollings leave standstill 20~30min with the dough that modulates, and to eliminate the inner tensions that dough formed because of stretching in the stirring phase, reduce the viscosity and the elasticity of dough, improve Products Quality and dough sheet processing performance.Dough is evenly sent into the feed well of biscuit production line, forms the thickness homogeneous through three rollings, and form is smooth, smooth surface, the dough sheet of quality exquisiteness.
4 develop and print the moulding dough sheet cellular type mould rolling that wears long, and make surperficial fine-meshed biscuit base.
5 baking temperatures that bake biscuit production line five districts are set at 210 ℃, 200 ℃, 200 ℃, 185 ℃, 180 ℃ successively, and the time of baking is 6.0min~7.5min.
It is 20 ℃~30 ℃ that biscuit after 6 cooling packings bake naturally cools to temperature, packs.
Embodiment 2
Raw material variety and consumption (kg or g) are:
Wheat flour 52
Brewex's grains (crossing 90 mesh sieves) 8
Vegetable oil 7
Syrup 16.5
Leavening agent 1.6
Milk powder 1.7
Vanillic aldehyde 0.06
Monoglyceride 0.06
Sodium pyrosulfite 0.08
Water 13
Described syrup is the aqueous solution of white granulated sugar, and the mass ratio of white granulated sugar and water is 2: 1.Described leavening agent is by baking powder 0.3, carbonic hydroammonium 1.2, and sodium acid carbonate 0.6 is formed.Preparation method is as described in the embodiment 1.