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Maturation and fermentation of a mixture of water, flour and yeasts and / or lactic bacteria

by luciano

Maturation and fermentation are just two of the many processes that take place within a dough: they are not the same thing and they must not be confused with each other. The general concept of “fermentation” is known and is quite well known and is understood as the complex of biological reactions involving the transformation of sugars as the lactic fermentation and the alcohol. During such metabolisms part of the sugars present in the dough are transformed by the yeast and by bacteria into acids, carbon dioxide, water, ethyl alcohol, energy etc.. and macroscopically result in a lowering of the pH value, in the production of aromatic substances and / or volatile, in gas production and in the increase of the dough mass. The term “maturation” on the other hand, refer to the complex of countless biochemical reactions that is the basis of cleavage or enzymatic breakdown of complex molecules into simpler molecules; macromolecules from complex to simple amino acids in the case of proteins, in the case of polysaccharides to monosaccharides. These reactions take long time, while the fermentation is much faster; the fermentation, however, can be slowed down very much if the dough is placed at rest in a low temperature (from 1 ° C to 4 ° C max). In this way we give the opportunity to the dough to mature; only to maturation occurred will choose to operate the gradual raising of the temperature in order to increase, to balance and optimize the fermentation process. Prolonghed fermentation and maturation also have an influence, not secondary, both on the shelf life both on the organoleptic characteristics of the finished product conferring, between the other, perfumes and flavors emphasized.

Deepening:

The fundamental importance of maturation

Monococcum Wheat (einkorn)

by luciano

Monococcus wheat protein content, on average 15-18%, is higher than that of other cultivated cereals and has a nutritional value higher than that of common wheat and durum wheat. The studies carried out at the Research Unit for the Qualitative Valorisation of Cereals of the Council for Research and Experimentation in Agriculture (CRA-QCE) in the last ten years have allowed to identify many peculiar and nutritionally interesting aspects of the monococcus wheat. Among the characteristics that make it unique in the field of straw cereals we have (i) the high content of carotenoids, precursors of vitamin A and natural antioxidants, which is about 5 times that of soft wheat; (ii) the excellent availability of tocoli (vitamin E), which is about 50% greater than durum wheat and soft wheat; (iii) the high content in lipids (about 50% more than common wheat), with a clear prevalence of unsaturated fatty acids; (iv) the high percentage in ash and the high content in minerals (particularly interesting are zinc, iron and phosphorus) and (v) a content in fruits about 50-70% greater than soft wheat (Hidalgo and Brandolini, 2008) ). The monococcus wheat flour, almost impalpable, has a characteristic yellow color and is excellent for the production of biscuits, snakes, flakes and other bakery products (Brandolini et al., 2008; Pollini et al., 2013); there are also genotypes with an excellent attitude to bread-making (Saponaro et al., 1995; Borghi et al., 1996). Also the pastification quality is very high, both in terms of workability of the raw material and of the quality of the finished product: the spaghetti and the monococco wheat macaroni have a good resistance to cooking and a reduced loss of starch compared to those based on commercial groats. of durum wheat (Brandolini et al., 2008). Moreover T. monococcum possesses small-sized (so-called B-type) starch granules in proportion to the cultivated wheats.

Deepening:
1. Tolerability of the monococcum wheat
2. More digestible starch in the monococcum wheat