THE QUALITY EFFECT  OF NON ALCOHOLIC BEVERAGE DEVELOPED FROM  VARIOUS SPICES

0
547

THE QUALITY EFFECT  OF NON ALCOHOLIC BEVERAGE DEVELOPED FROM  VARIOUS SPICES

 

1.1 Background to the Study.

Hibiscus sabdariffa belongs to the super order Malvaceae and it is believed to originate from East Africa (IIondu and IIoh, 2007). H. sabdariffa plants are cultivated and consumed as vegetable and tea, whereas other hibiscus varieties are planted for the fibers they produce. It is called different names like Roselle and Sorrel in English and it is locally called zobo and Isapa in Nigeria (Adebayo and Samuel, 2000). Many parts of Roselle including seeds,eaves, fruits and roots are used in various foods. Among them, the fleshy red calyces are the most popular (Yadeng et al., 2005). Roselle is used inany folk medicines. In Nigeria, the dry red calyces are processed into a refreshing non- alcoholic beverage known as zobo.

Roselle are rich in anthocyanins and was found to contain higher amounts of ascorbic acid compared to oranges and mangoes (Mazza et al., 1993). The anthocyanins from the calyces of this tropical plant are ideal for producing brilliant red colouring in gelatin, jams, jellies and fruit beverages (Mazza et al., 1993). DP3- sambubioside is the major pigment responsible for the reddish- violet colour. Pharmacognosists in Senegal trend Roselle extracts for lowering blood pressure (Morton and J., 1987). Morton, 1987 reported that both the aqueous extract and the colouring matter of the calyces are lethal to Mycobacterium tuberculosis.

In the West Indies  and tropical America, Roselle is prized primarily for the cooling, lemonade like beverage made from the calyces. This is still one of the most popular summer drinks of Mexico, as Rose observed in 1899. In Egypt, Roselle ‘Ade’ is consumed cold in summer, hot in winter. In Jamaica, a traditional Christmas drink is prepared by putting Roselle into an earthenware jug with a little grated ginger and sugar as desired, pouring boiling water over it and letting it stand over night. The liquid is drained off and serves with ice and often with a dash of rum (Morton and J., 1987). A similar spices drink has long been made by natives of West Tropical Africa (Chang- Chen Chen et al., 1996). In Nigeria, the Roselle calyces, especially the red variety have long been uses for making local non- alcoholic drink called zobo.

Dougheri et al.,( 2007) employed some chemical preservatives to improve the shelf life of zobo drink. They reported that only samples treated with benzoic acid remained organ old primally attractive after 14days of storage. However, the problem with the Uae of chemical preservatives in food is that they tend to have adverse effects on the health of consumers (Adesokan et al., 2010). Therefore naturally occurring plant extracts with proven antimicrobial properties will be preferred in food preservation (Kolapo et al., 2007). The use of natural preservatives has become more popular as compared to synthetic antimicrobiala and antioxidants (Aliu et al., 2007).

Spices such as ginger and garlic are two plants traditionally used as spices in food preparation but have been demonstrated to have both antioxidant and antimicrobial activities (Kolapo et al., 2007).

1.2 Problem statement

Despite the fact that the popularity of beverage from hibiscus sabdariffa is increasing, one of it’s greatest limitation for large scale production is that it has a very short shelf life of 24hrs if not refrigerated (Omemu et al., 2006). Therefore, there is urgent need to explore various preservation methods that could ve employed to extend the shelf life of this product.

DOWNLOAD COMPLETE PROJECT MATERIAL

THE QUALITY EFFECT  OF NON ALCOHOLIC BEVERAGE DEVELOPED FROM  VARIOUS SPICES

Leave a Reply