Valorization of agro-industrial fruit peel waste to fluorescent nanocarbon sensor: Ultrasensitive detection of potentially hazardous tropane alkaloid

2021 ◽  
Vol 16 (3) ◽  
Author(s):  
Athiyanam Venkatesan Ramya ◽  
Manoj Balachandran
Keyword(s):  
Tropane Alkaloid ◽  
Ultrasensitive Detection ◽  
Fruit Peel

The Utilization of Red Dragon Fruit Peel Extract (Hylocereus costaricencis) As A Natural Colorant of Dried Noodle

2020 ◽  
Vol 2 (1) ◽  
Author(s):  
Silaturahmi Silaturahmi ◽  
Zaidiyah Zaidiyah ◽  
Tengku Mia Rahmiati
Keyword(s):  
Product Diversification ◽  
Fruit Peel ◽  
Physical Quality ◽  
Natural Colorant ◽  
Randomized Design ◽  
Solid Loss ◽  
Dragon Fruit ◽  
Completely Randomized Design ◽  
Peel Extract

The use of colorants in the dried noodle manufactures is an effort of product diversification. Besides of being used as a natural coloring agent, this peel extract is also used to improve nutritional value of the expected product. The purpose of this study was to determine the effect of red dragon fruit peel extract on the physical quality of dried noodle.  The study was conducted by using Completely Randomized Design (CRD) method with one factor, namely concentration of red dragon fruit peel extract (N1 = 10 ml, N2 = 15 ml, N3 = 20 ml, N4 = 25 ml, N5 = 30 ml).  The observations of its physical quality consisted of water absorption, solid loss during cooking, and organoleptic tests (aroma and color).  The best quality of dried noodle was obtained by using 30 ml red dragon fruit peel extract (N5) with physical properties, namely DSA levels of 351.92%, solid loss during cooking 4.78%, aroma 3.79 (like) and color 3.89 (like).

ORGANIC ACIDS, SUGARS, PHENOLIC COMPOUNDS AND ANTIOXIDANT ACTIVITY OF Malus floribunda coccinella FRUIT, PEEL AND FLESH

2018 ◽  
Vol 17 (5) ◽  
pp. 47-59
Author(s):  
Hacer Coklar ◽  
Mehmet Akbulut ◽  
Iliasu Alhassan ◽  
Şeyma Kirpitci ◽  
Emine Korkmaz
Keyword(s):  
Antioxidant Activity ◽  
Phenolic Compounds ◽  
Organic Acids ◽  
Fruit Peel ◽  
Malus Floribunda

PHYTOCHEMICAL CONSTITUENTS, ANTIOXIDANT ACTIVITY AND ACUTE ORAL TOXICITY OF POMEGRANATE (PUNICA GRANATUM L.) FRUIT PEEL EXTRACT

2019 ◽  
pp. 7-14
Author(s):  
Hai Trieu Ly ◽  
Tuan Anh Vo ◽  
Viet Hong Phong Nguyen ◽  
Thi My Sa Pham ◽  
Bich Thao Lam ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Gallic Acid ◽  
Radical Scavenging ◽  
Dry Weight ◽  
Punica Granatum ◽  
Acute Oral Toxicity ◽  
Oral Toxicity ◽  
Fruit Peel ◽  
Total Polyphenol ◽  
Punica Granatum L

Background: The natural antioxidants have an important role in the prevention of many diseases. The aim of study is to investigate phytochemical components, antioxidant activity and acute oral toxicity of Pomegranate (Punica granatum L.) fruit peel (PFP) extract. Materials and methods: Phytochemicals of PFP were determined by qualitative chemical tests, thin layer chromatography, total polyphenol and flavonoid contents. The PFP extract was evaluated for antioxidant activity by DPPH assay and MDA assay. In vivo acute oral toxicity test was conducted using Karber-Behrens method to determine LD50. Results: Results illustrated that PFP mainly contains flavonoids, alkaloids, tannins, triterpenes, saponins, and coumarins. PFP extract exhibited the total polyphenol and flavonoid contents with 189.97 mg gallic acid equivalent/g dry weight and 9.42 mg quercetin equivalent/g dry weight, respectively. The DPPH free radical scavenging and anti-lipid peroxidation activities of PFP extract were expressed with IC50 value of 4.80 μg/mL and 0.38 μg/ mL, sequentially. Simultaneously, the Dmax (the maximum dose administered to mice that no toxicity was observed) of PFP extract was determined to be 21.28 g/kg, equivalent to 35.64 g dried herb. Conclusion: The PFP extract is relatively safe and revealed high antioxidant activity. Key words: Punica granatum L.; polyphenols; flavonoids; gallic acid; quercetin; antioxidant activity; acute oral toxicity

Effectiveness of Passion Fruit Peel Flour (Passiflora edulis L.) versus Turmeric Flour (Curcuma longa L.) on Glycemic Control: Systematic Review and Meta-Analysis

2020 ◽  
Vol 16 (5) ◽  
pp. 450-456
Author(s):  
Danilo F. Sousa ◽  
Vivian S. Veras ◽  
Vanessa E.C.S. Freire ◽  
Maria L. Paula ◽  
Maria A.A.O. Serra ◽  
...  
Keyword(s):  
Systematic Review ◽  
Glycemic Control ◽  
Curcuma Longa ◽  
Meta Analysis ◽  
Passion Fruit ◽  
Joint Analysis ◽  
Case Control Studies ◽  
Bias Analysis ◽  
Fruit Peel ◽  
Cross Sectional

Background:: It is undeniable that diabetes may cause several health complications for the population. Many of these complications are associated with poor glycemic control. Due to this, strategies to handle this problem are of great clinical importance and may contribute to reducing the various complications from diabetes. Objective: : The aim of this study was to compare the effectiveness of the passion fruit peel flour versus turmeric flour on glycemic control. Methods: This is a systematic review and meta-analysis following the PRISMA protocol. The following inclusion criteria were applied: (1) Case-control studies, cohort studies, and clinical trials, due to the improved statistical analysis and, in restrict cases, cross-sectional studies; (2) Articles published in any language. The databases used for the search were PubMed, Scopus, Web of Science, Cochrane, and LILACS. A bias analysis and a meta-analyses were undertaken using R Studio (version 3.3.1) using effect- size models. Results: : A total of 565 studies were identified from which 11 met the inclusion and exclusion criteria. Through isolated analysis, the effectiveness of turmeric flour on glycemic control was in the order of 0.73 CI (Confidence Interval) (from 0.68 to 0.79) and the effectiveness of passion fruit peel flour was 0.32 CI (0.23 to 0.45). The joint analysis resulted in 0.59 CI (0.52 to 0.68). The assessment of blood glucose was by glycated hemoglobin levels. All values were significant at a p < 0.05 level. Conclusion: Both interventions showed significant effects on glycemic control.

Ultrasensitive detection of specific IgE based on nanomagnetic capture and separation with AuNP-anti-IgE nanobioprobe for signal amplification

2021 ◽  
Author(s):  
Mengda Cao ◽  
Yongxin Liu ◽  
Chen Lu ◽  
Miao Guo ◽  
Lin Li ◽  
...  
Keyword(s):  
Allergic Disease ◽  
Signal Amplification ◽  
Specific Ige ◽  
Ultrasensitive Detection ◽  
Accurate Detection ◽  
Personalized Diagnosis

The accurate detection of allergen specific IgE (sIgE) is fundamental in the diagnosis of allergic disease. The present commercial platforms fail to meet the need for personalized diagnosis, due to...

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