Progress in Chemical and Biochemical Research

Comparative Assessment of Phytochemicals in Four (4) Varieties of Ananas Comosus (l.) Merr Peels

Tarhemba Terwanger Philip; Kaana Asemave; G.O Obochi

Volume 4, Issue 1 , January 2021, , Pages 1-10

https://doi.org/10.22034/pcbr.2020.240534.1111

Abstract

The paper reports comparative assessment of some phytochemicals in four (4) varieties of pineapple (Ananas comosus (L.) merr) peels / rinds. These varieties were Native Pineapple (A), ... Read More The paper reports comparative assessment of some phytochemicals in four (4) varieties of pineapple (Ananas comosus (L.) merr) peels / rinds. These varieties were Native Pineapple (A), Queens Pineapple (B), MD-2 Pineapple (C), and Smooth Cayene pineapple (D). The pineapples were collected, properly washed, and the peels were processed. After that, the peels were pulverized and oven-dried at 50 OC for 48 h. Chefman 500 W Blender was used to blend these dry samples into 0.5 µm sizes. The resulting peels were used for the analyses of alkaloid, tannin, phytate, oxalate, flavonoid, cardiac glycoside, total phenolic, and βeta- carotene using standard reported procedures. The results implied higher levels of flavonoid and total phenol in the varieties C and D than for the varieties A and B. The levels of β-carotene and cardiac glycoside were found to be significantly different (p <0.05) amongst the different peels. However, it was observed that there was no significant difference (p <0.05) in tannin and phytate contents of these rinds. There was also no significant difference in the oxalate contents of varieties A and B; but difference in the oxalate levels of varieties C and D was significant (p <0.05). Like the varieties A and B, the difference in alkaloids content of varieties C and D was not significant (p <0.05). These peels can be blended into our diets because of the presence of these phytochemicalsThe paper reports comparative assessment of some phytochemicals in four (4) varieties of pineapple (Ananas comosus (L.) merr) peels / rinds. These varieties were Native Pineapple (A), Queens Pineapple (B), MD-2 Pineapple (C), and Smooth Cayene pineapple (D). The pineapples were collected, properly washed, and the peels were processed. After that, the peels were pulverized and oven-dried at 50 OC for 48 h. Chefman 500 W Blender was used to blend these dry samples into 0.5 µm sizes. The resulting peels were used for the analyses of alkaloid, tannin, phytate, oxalate, flavonoid, cardiac glycoside, total phenolic, and βeta- carotene using standard reported procedures. The results implied higher levels of flavonoid and total phenol in the varieties C and D than for the varieties A and B. The levels of β-carotene and cardiac glycoside were found to be significantly different (p <0.05) amongst the different peels. However, it was observed that there was no significant difference (p <0.05) in tannin and phytate contents of these rinds. There was also no significant difference in the oxalate contents of varieties A and B; but difference in the oxalate levels of varieties C and D was significant (p <0.05). Like the varieties A and B, the difference in alkaloids content of varieties C and D was not significant (p <0.05). These peels can be blended into our diets because of the presence of these phytochemicals.

Extraction and Antibacterial Studies of Oil from three Mango Kernel obtained from Makurdi - Nigeria

Kaana Asemave; D. O. ABAKPA; T.T. LIGOM

Volume 3, Issue 1 , February 2020, , Pages 74-80

https://doi.org/10.33945/SAMI/PCBR.2020.1.9

Abstract

The ability of bacteria to develop resistance to many antibiotics cannot be undermined given the multifaceted health challenges in the present times. For this reason a lot attention ... Read More

The bioactivities of the neem (seeds and leaves) against Callosobruchus maculatus on a Vigna Subterranean L.

Kaana Asemave; Titus Anure

Volume 2, Issue 3 , August 2019, , Pages 92-98

https://doi.org/10.33945/SAMI/PCBR.2019.3.2

Abstract

This research reports the novel bioactivities of neem leaves powder, neem leaves concentrate, neem seeds powder and neem seeds oil against the weevil (Callosobruchus maculatus) on bambara ... Read More

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Author = Kaana Asemave

Comparative Assessment of Phytochemicals in Four (4) Varieties of Ananas Comosus (l.) Merr Peels

Abstract

Extraction and Antibacterial Studies of Oil from three Mango Kernel obtained from Makurdi - Nigeria

Abstract

The bioactivities of the neem (seeds and leaves) against Callosobruchus maculatus on a Vigna Subterranean L.

Abstract