Reducing the Negative Effect on White Wine Chromatic Characteristics Due to the Oxygen Exposure during Transportation by the Deoxygenation Process

In white wine production, a great effort is made to avoid extensive contact with oxygen, which might adversely affect color and aroma. In this work, the impact of bulk transportation on white wine oxygen uptake and the effect of deoxygenation on white wine dissolved oxygen levels, as well on the phenolic composition and chromatic characteristics of white wines stored for nine months, were studied. Transportation increased the white wine dissolved oxygen content (117 and 181% in the wines studied) that increased the free sulfur dioxide loss during storage. Moreover, deoxygenation of white wines reduced the increase in the yellow color of white wines during storage, probably related to the higher levels of free sulfur dioxide that remain in these wines during storage. Furthermore, the amount of wine phenolics also have a decisive influence on wine color characteristics evolution, with increased levels of total phenolic compounds increasing the variation in the b *(measure of yellowness) values of the wines after nine months of storage. Results show the negative impact of bulk transportation on white wine color characteristics; however, wine deoxygenation is a good practice to minimize those aspects, preserving color characteristics.

PHARMACEUTICAL & ANALYTICAL STUDY OF SAMAGUNA BALIJARITA RASA SINDURA

Rasasindura is a one of Kuppipakva Rasayana a unique method of preparation and is one such imperative Kupipakwa Rasayana, referred to be Elixir of life. It is formulated by two fundamental substances of Rasashastra i.e., Shudha Parada and Shudha Gandhaka. It is said to be prepared by same process but with different proportion of Gandhaka, and accordingly various forms of Rasasindura are named as Ardhaguna, Samaguna, Dviguna, Triguna, Chaturguna, Panchaguna, Shadguna balijarita Rasasindura, where in, the therapeutic merits of Rasasindura and pharmaceutics of Rasasindura changes according to quantum of Gandhaka. Rasasindura is a Sagandha, Sagni and Bahirdhooma Kupipakwa Rasayana. Samaguna balijarita Rasasindur was prepared with equal quantities of Parada and Gandhaka by Kupipaka method in 20 hours and physicochemical analysis was carried out. Ash values in Samagunabalijarita Rasasindur were found to be 0.02%. Free mercury was nil in Samagunabalijarita Rasasindur where as its traces were present in the Kajjali. Free sulfur traces were present in Samagunabalijarita Rasasindur. Total mercury percentage in Samaguna Kajjali was 36.02%. Total mercury percentage in Samagunabalijarita Rasasindoor was 83.15%. Total sulfur percentage in Samagunabalijarita Rasasindoor was 13.06%. By XRD analysis Samagunabalijarita rasasindur was identified as Cinnabar having Hexagonal crystal structure with primitive lattice.

A wet-processed, binder-free sulfur cathode integrated with a dual-functional separator for flexible Li–S batteries

A dissolving–recrystallizing strategy for fabricating binder-free flexible sulfur cathodes integrated with dual-functional separators is reported.