90 research outputs found
Development of a New Method of Storage and Maximum Separation of Chlorophils From Chlorophylcontaining Vegetables at Reception of Healthfull Nanoproducts
The aim of the work is the development of a new way of deep processing of chlorophyll-containing vegetables that gives a possibility not only to preserve chlorophylls a and b and other biologically active substances (BAS) of raw materials, but also to transform hidden bound (inactive) forms of chlorophyll in the free easy-digestible form at getting steam-thermally processed semi-products and healthy food products in the nanoform.For achieving the aim, the complex effect of steam-thermal processing and mechanolysis at fine-dyspersed comminution using the new equipment was applied as an innovation for thermal processing and comminution.There was developed the new method of getting healthy products of chlorophyll-containing vegetables (broccoli, spinach, Brussels cabbage, green leguminous haricot bean), steam-thermally processed (by hot steam) in the steam-convectional stove and fine-dyspersed with high contents of chlorophylls and other BAS and prebiotics. The method is based on the complex effect of processes of thermodestruction, mechanodestruction and non-enzymatic catalysis on raw materials at fine-dyspersed comminution. It was demonstrated, that at steam thermal processing of chlorophyll-containing vegetables (CCV) in the steam-convectomat during 5 minutes, there takes place not only preservation of chlorophylls a and b, but more full separation (in 1,33…1,4 times) from the hidden (bound) form, comparing with fresh vegetables. There was elucidated the mechanism of this process. The more full extraction of hidden forms of β-carotene (2 times more than in fresh CCV) takes place in parallel.The essentially more effect of transforming hidden forms was revealed at fine-dyspersed comminution of steam-thermally processed CCV. It was demonstrated, that thermally processed nanoproducts of CCV contain 2…2,1 more chlorophylls a and b, 2,0…3,3 times more carotenoids in the bound form than fresh vegetables.The quality of obtained new types of fine-dyspersated steam-thermally processed green products as puree and soups-purees of CCV exceeds one of known analogues by contents of chlorophylls a and b, β-carotene and other BAS, which are in nanosize easy-digestible form.Using new types of fine-dyspersated purees of CCV, there was developed the new green line of healthy nanoproducts: soups-purees, nanodrinks, nanosorbets, sauces-dressings, sauces-deeps, ice-cream, snacks and so on. It was demonstrated, that new products exceed existing analogues by BAS content (chlorophylls, β-carotene, L-ascorbic acid, phenol compounds)
THE DEVELOPMENT OF NEW METHOD OF PRODUCTION OF HEALTHY ICE-CREAM-SORBET OF FRUITS AND VEGETABLES WITH A RECORD BAS CONTENT
The aim of the work is to develop a new type of producing healthy fruit-vegetable ice-cream-sorbet with the record BAS content using fresh vegetables and fruits as raw materials (especially, berries: blackberry, cherry, apricots, sea buckthorn, fruits – apples, lemons with zest, vegetables – spinach, olives, pumpkin) and innovative technological methods, such as cryogenic “shock freezing” and low temperature comminution.
There was offered and developed a new way of preparing healthy fruit-vegetable ice-cream-sorbet, based on using cryogenic “shock” freezing and fine-dyspersated comminution of vegetables and fruits as an innovative method of structure creation and getting sorbets with the record BAS content. The complex effect of these methods results in activation and extraction of hidden BAS from fruits and vegetables in the free form, and also in pectin transformation from the inactive form into the active one. A peculiarity of producing sorbets is the use of only natural ingredients (fruits, berries, vegetables) and also the absence of artificial food supplements (stabilizers, stiffeners, emulsifiers, synthetic coloring agents and so on). The new method allows to preserve vitamins and other BAS of initial raw materials completely in sorbets. At the same time it gives a possibility to extract from raw materials hidden inactive BAS forms, bound in nanocomplexes with biopolymers and mineral substances, into the free, easily-assimilated nanoform. The mass share of BAS in sorbets is 2,5…3,5 times more that in fresh fruits and vegetables that is controlled by standard chemical methods. At the same time the new method allows to extract and transform into the soluble form pectin substances that are in fruits and vegetables in the inactive hidden form more completely (by 70 %). The mass share of soluble pectin in sorbets is 3,0…5,0 times more than in fresh raw materials.
The following fruits and vegetables were chosen at preparing sorbets: apples, blackberry, cherry, apricots, sea buckthorn, pumpkin, spinach, olives, lemon with zest. They are known for their treating-prophylactic properties and first of all favor strengthening of the human organism’s immunity.
The recipes of healthy sorbets were developed – 3 types of fruit-vegetable ice-cream with chlorophyll-containing, carotene-containing and anthocyan-containing fruits and vegetables. Natural fruit-vegetable raw materials at preparing ice-cream-sorbets act as five in one: a source of BAS, stiffeners, structure-creators, coloring agents and aromatizers. New types of sorbets are in the nanosize form and exceed analogues by BAS. Technological regimes of producing ice-cream-sorbets are developed at the stand semi-industrial equipment
DEVELOPMENT OF A NEW METHOD OF STORAGE AND MAXIMUM SEPARATION OF CHLOROPHILS FROM CHLOROPHYLCONTAINING VEGETABLES AT RECEPTION OF HEALTHFULL NANOPRODUCTS
The aim of the work is the development of a new way of deep processing of chlorophyll-containing vegetables that gives a possibility not only to preserve chlorophylls a and b and other biologically active substances (BAS) of raw materials, but also to transform hidden bound (inactive) forms of chlorophyll in the free easy-digestible form at getting steam-thermally processed semi-products and healthy food products in the nanoform.
For achieving the aim, the complex effect of steam-thermal processing and mechanolysis at fine-dyspersed comminution using the new equipment was applied as an innovation for thermal processing and comminution.
There was developed the new method of getting healthy products of chlorophyll-containing vegetables (broccoli, spinach, Brussels cabbage, green leguminous haricot bean), steam-thermally processed (by hot steam) in the steam-convectional stove and fine-dyspersed with high contents of chlorophylls and other BAS and prebiotics. The method is based on the complex effect of processes of thermodestruction, mechanodestruction and non-enzymatic catalysis on raw materials at fine-dyspersed comminution. It was demonstrated, that at steam thermal processing of chlorophyll-containing vegetables (CCV) in the steam-convectomat during 5 minutes, there takes place not only preservation of chlorophylls a and b, but more full separation (in 1,33…1,4 times) from the hidden (bound) form, comparing with fresh vegetables. There was elucidated the mechanism of this process. The more full extraction of hidden forms of β-carotene (2 times more than in fresh CCV) takes place in parallel.
The essentially more effect of transforming hidden forms was revealed at fine-dyspersed comminution of steam-thermally processed CCV. It was demonstrated, that thermally processed nanoproducts of CCV contain 2…2,1 more chlorophylls a and b, 2,0…3,3 times more carotenoids in the bound form than fresh vegetables.
The quality of obtained new types of fine-dyspersated steam-thermally processed green products as puree and soups-purees of CCV exceeds one of known analogues by contents of chlorophylls a and b, β-carotene and other BAS, which are in nanosize easy-digestible form.
Using new types of fine-dyspersated purees of CCV, there was developed the new green line of healthy nanoproducts: soups-purees, nanodrinks, nanosorbets, sauces-dressings, sauces-deeps, ice-cream, snacks and so on. It was demonstrated, that new products exceed existing analogues by BAS content (chlorophylls, β-carotene, L-ascorbic acid, phenol compounds)
Measuring non-radiative relaxation time of fluorophores with biomedical applications by intensity-modulated laser-induced photoacoustic effect
Modulated tone-burst light was employed to measure non-radiative relaxation time of fluorophores with biomedical importance through photoacoustic effect. Non-radiative relaxation time was estimated through the frequency dependence of photoacoustic signal amplitude. Experiments were performed on solutions of new indocyanine green (IR-820), which is a near infrared dye and has biomedical applications, in two different solvents (water and dimethyl sulfoxide (DMSO)). A 1.5 times slower non-radiative relaxation for the solution of dye in DMSO was observed comparing with the aqueous solution. This result agrees well with general finding that non-radiative relaxation of molecules in triplet state depends on viscosity of solvents in which they are dissolved. Measurements of the non-radiative relaxation time can be used as a new source of contrast mechanism in photoacoustic imaging technique. The proposed method has potential applications such as imaging tissue oxygenation and mapping of other chemophysical differences in microenvironment of exogenous biomarkers
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