Beetroot juice

Beetroot juice-based colors Beet powder, E 162 0.35% betanin Red beet juice, maltodextrin Bluish red Condiments, gelatin products, fruit preparations, sauces, candies, power beverage products... 

SAQ 9.5 A solution of beetroot juice is strongly coloured. The incident beam shining through it I0 emits 4 x 1010 photons per second, and the emergent beam emits 109 photons per second. Calculate the absorbance of the solution. 

How much beetroot juice does the stain on the plate contain ... 

The dye responsible for the red-mauve colour of beetroot juice is potent, because a small amount imparts an intense stain on most crockery. It has a large extinction coefficient s (see Chapter 9). The dye is fairly difficult to remove, so we safely assume the adsorption bonds are strong and chemisorptive by nature. 

We perform a series of experiments. We purchase a stock of identical plates and prepare several solutions of beetroot juice of varying concentration. One plate is soaked per solution. The chemisorptive bond between the dye and plate is strong, and equilibrium is reached after only a few seconds. The excess juice is decanted off for analysis, e.g. by means of optical spectroscopy and the Beer-Lambert law, provided we know the extinction coefficient s for the juice. 

Worked Example 10.1 The following data refer to the adsorption of the red-mauve dye from beetroot juice on porcelain at 25 °C. (1) Show that the data obey the Langmuir adsorption isotherm. (2) Demonstrate that 1.2 x 10 8 mol of dye adsorb to form a mono-layer. (3) Estimate the area of a single dye molecule if the radius of a plate was 17.8 cm (we assume the formation of a complete monolayer). 

We then determine the gradient of the line. Its reciprocal has a value of nm, which is the number of moles of beetroot juice in a monolayer. The gradient of the graph is... 

This is a tiny value, and reveals how a small amount of beetroot dye will stain a standard aluminosilicate plate in other words, it demonstrates how large is the extinction coefficient e of the beetroot juice chromophore. 

Figure 10.10 Langmuir plot concerning the adsorption of beetroot-juice dye onto a porcelain substrate at 25 °C graph of c x (as y ) against c (as V)...

Glutaric acid (= 1,3- Beta vulgaris beetroot juice) Sour (acid) taste [toxic]... 

Beetroot juice contains a high level of N03, substantially decreases blood pressure (BP) levels, inhibits platelet aggregation, and prevents ischemia-induced endothehal dysfunction. The measurement of N03 concentration in beetroot supplement provides supporting information to prove its natural remedy effect. Therefore, Madasamy et al. (2013)... 

The measurement of total N02 and N03 in blood is an index of endothelial nitric oxide synthase activity (TessaroUo et al., 2015). Moreover, the high altitude subjects suffer from the reduction of N02 level in their blood, leading to several diseases at hypoxia conditions (Kim et al., 2003). Recent studies reported that the administration of N03 -rich beetroot juice to human and several animal models promotes NO-like... 

Individual Beetroot Juice Juice Beetroot Juice Juice... 

Riiben-harzsaure, /. resin acid of beets, -melasse,/. beet molasses, beetroot molasses, -pottasche, /. potash from beet molasses, -pulpe, /. beet pulp, -rohzucker, m. raw beet sugar. -saft, m. beet(root) juice, -samen, m. turnip, rape-, beet, or carrot seed, -schlempe, /. beet vinasse. -schnitzel, m. beet chip, beet slice, -sirup, m. beet sirup, beetroot sirup, -spiritus, m. beet spirit (from beet molasses), -stecher, m. beet sampler. 

Despite their potential health-promoting effects as dietary antioxidants, the fate of betalains in humans has been poorly studied. Betalain bioavailability was first demonstrated in humans by the appearance of betacyanins in urines after ingestion of beetroot extract" and red beet juice," indicating that these compounds are indeed absorbed. Although intact betacyanins (betanin and isobetaiun) appeared rapidly in human urine with a maximum excretion rate observed within 2.5 to 8 hr," betacy-anin recoveries in human urine were usually low (< 1% of the dose) over 24 hr postdose, suggesting that either the bioavailabifity of betacyaiuns from red beetroot is low or that renal clearance is a minor excretion route for these compounds. 

Juices extracts (liquorize), spirits (orange, lemon), syrups (black currant), tinctures (ginger), and aromatic waters Mineral pigments (iron oxides), natural colorants, anthocyanins, carotenoids, chlorophylls riboflavine, red beetroot extract, and caramel synthetic organic dyes azo compounds... 

The processes for defecating tho juice of tho beetroot, are bo analogous to those already described with the juice of the cone as to need no special description. The scum i b submitted to pressure In a screw press, in order to separate the juice which it retains mechanically. 

In 1837 Schutzenbach, instead of using fresh raspings from which to extract the juice, proposed to dry slices of beetroot to preserve them. These could afterwards be softened in water to which milk of lime was added, and... 

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