α, β-citral from Cymbopogon citratus on cellulosic film: Release potential and quality of coalho cheese

LWT ◽  
2017 ◽  
Vol 85 ◽  
pp. 246-251 ◽  
Author(s):  
Marília A. Oliveira ◽  
Maria S.R. Bastos ◽  
Hilton C.R. Magalhães ◽  
Deborah S. Garruti ◽  
Selene D. Benevides ◽  
...  
Author(s):  
Solomon Umukoro ◽  
Benneth Ben-Azu ◽  
Azeez O. Iyiola ◽  
Bamboye Adeboye ◽  
Abayomi M. Ajayi ◽  
...  

AbstractBackgroundAnxiety is a common ailment of high co-morbidity with epilepsy, a chronic neurologic disease characterized by recurrent seizures. Current drugs used for these conditions have several limitations such as disabling side effects, relapse, and ineffectiveness in certain population necessitating the search for alternative options. The aqueous leaf extract of Cymbopogon citratus (CYC) is widely used for its various health-promoting effects including relief of seizures and anxiety in ethnomedicine. This present study describes its effects on convulsions, anxiety-like behaviors, and social interaction in mice.MethodsMale Swiss mice were pretreated orally with CYC (25, 50, and 100 mg/kg), diazepam (1 mg/kg), or distilled water (10 mL/kg) 60 min before induction of convulsions with intraperitoneal (i.p.) injection of picrotoxin (10 mg/kg), pentylenetetrazole (PTZ; 85 mg/kg), or isoniazid (300 mg/kg). The animals were then observed for the occurrence of seizure for 30 min or 2 h for isoniazid. The effects of CYC on anxiety-like behaviors, social interaction, and spontaneous motor activity (SMA) were evaluated in naive mice.ResultsCYC (25–100 mg/kg) did not prevent convulsions nor delay the latency to convulsions induced by picrotoxin, PTZ, or isoniazid. Pretreatment with CYC (50 and 100 mg/kg, p.o) produced anxiolytic-like effect, decreased SMA, and also enhanced social interaction behavior in naive mice.ConclusionsThe results of this study suggest that CYC did not exhibit an anticonvulsant property in mice injected with picrotoxin, PTZ, or isoniazid, but its anxiolytic-like activity and social interaction-promoting effect might be of benefit as an adjuvant in improving the quality of life of epileptic patients.


2020 ◽  
Vol 3 (3) ◽  
pp. 171-178
Author(s):  
Nur'aini ◽  
Nining Suningsih ◽  
Muhammad Hakim

The addition of salt and herbal plants such as bay leaf (Eugenia polyantha) and lemongrass (Cymbopogon citratus DC) extacts can extender the shelf life and increase the flavor of the salted eggs. The purpose of this study was to determine the quality of eggs produced from using the herbal plants in terms of the organoleptic testing. This research used eggs from laying hens with salted egg making media consisting of rubbing ash plus salt, supplemented with bay leaf (Eugenia polyantha), lemongrass (Cymbopogon citratus DC), with storage period of 10 days. Organoleptic test results showed that the addition of bay leaves and lemongrass to the production of salted eggs, did not significantly improve the quality of salted eggs produced. The lack of storage time in the egg marinating process led to the incomplete, in salt water absorption into the egg. It is concluded that the addition of bay leaves and lemongrass to the media of making salted chicken eggs did not have a significantly different effect on the organoleptic quality of the salted eggs.


2020 ◽  
Vol 2 (2) ◽  
Author(s):  
Wahyu Eko Pranoto ◽  
Saimul Laili ◽  
Ratna Djuniwati Lesminingsih

Chili plants is one of the leading horticultural commodities, but in increasing the production and quality of chili plants against pest attacks are not accompanied by good management and right, so this causes a decrease in the level of chili production. The aim of this research is to find out the combination reaction of garlic (Allium sativum), lemongrass (cymbopogon citratus) and soursop (Annona muricata) as natural pasticides against aphids (Aphis gossypll) of cayenne pepper (Capsicum frutescens). This research was conducted experimentally by using a Randomized Block Design (RBD) with 5 treatments of various kinds of concentrations namely 0%, 10%, 20%, 30%, and 40%; repeated five times. In this study the mixture combination was higher at a concentration of 40% with a mortality of 43.6%.Keywords:: chili plants, pest Aphids, natural pesticide.  ABSTRAKTanaman cabai merupakan salah satu komoditas hortikultura unggulan namun dalam peningkatan produksi dan kualitas tanaman cabai terhadap serangan hama tidak dibarengi dengan pengelolaan yang baik dan benar, sehingga hal ini menyebabkan menurunnya tingkat produksi tanaman cabai. Penelitian bertujuan megetahui reaksi kombinasi bawang putih (Allium sativum), serai (cymbopogon citratus) dan sirsak (Annona muricata) sebagai pastisida alami terhadap hama kutu daun (Aphis gossypll ) tanaman cabai rawit (Capsicum frutescens).  Penelitian ini dilakukan secara eksperimen dengan menggunakan Rancangan AcakKelompok (RAK) dengan 5 perlakuan macam konsentrasi yaitu 0% , 10% , 20% , 30% , dan 40%; diulang lima kali.  Pada hasil penelitian ini kombinasi campuran lebih tinggi pada konsentrasi 40% dengan mortalitas 43,6 %.Kata kunci: cabai rawit, kutu daun, pestisida alami


2016 ◽  
Vol 1 (1) ◽  
pp. 1009-1016
Author(s):  
Zaituni Zaituni ◽  
Rita Khathir ◽  
Raida Agustina

Abstrak. Minyak atsiri sereh dapur diperoleh dari hasil penyulingan tanaman sereh dapur. Minyak sereh dapur merupakan sumber sitral yang merupakan konstituen utama dari minyak tersebut. Penelitian ini bertujuan untuk mengetahui mutu minyak atsiri yang dihasilkan dengan metode penyulingan air-uap (water and steam destillation). Bagian tanaman sereh dapur yang digunakan yaitu bagian batang dan daun yang disuling menggunakan alat penyulingan air dan uap.  Hasil penelitian menunjukkan bahwa rendemen minyak atsiri sereh dapur dari penyulingan bagian daun diperoleh sebesar 0,399 % 10 kali lipat lebih besar dari rendemen minyak atsiri sereh dapur pada bagian batang (0,039 %). Bobot jenis minyak atsiri sereh dapur pada daun 0,8987 dan pada batang 0,8940. Indeks bias minyak atsiri sereh dapur pada daun 1,4876 dan pada batang 1,4880. Kelarutan dalam alkohol 70% minyak atsiri sereh dapur dari daun dan batang mempunyai tingkat kelarutan keruh pada perbandingan 1:5. Berdasarkan rendemen dapat disimpulkan bahwa bagian yang lebih menguntungkan untuk disuling adalah daun. Berdasarkan parameter mutu yang dianalisis dapat disimpulkan bahwa minyak atsiri sereh dapur dari bagian batang dan daun sudah memenuhi standar Essential Oil Association (EOA).The Destillation of Lemongrass Essential Oil by Using the Water-steam Method Abstract. Lemongrass essential oil is obtained from the distillation of lemongrass plant. The main content of this oil is sitral content. This study aimed to determine the quality of essential oil produced by the method of water-steam destillation. The experiment was done by water-steam destillation of stalks and leaves of lemongrass, respectively, under 3 repeatations. Lemongrass essential oil obtained from leaves was 0,399%, which is 10-fold greater than the yield of the stalks (0,039%). The specific gravity of Lemongrass essential oil obtained from leaves was 0,8987 where as the specific gravity of Lemongrass essential oil obtained from stalks was 0.8940. The refractive index of lemongrass oil obtained from  leaves was 1.4876 while the refractive index of lemongrass oil obtained from stalks was 1.4880. Based on solubility in 70% alcohol test, lemongrass essential oil obtained from the leaves and stalks were a little bit cloud at a ratio of 1: 5. Based on its yield, it can be concluded that the leave plant produced more oil. However, the quality of both oils showed that lemongrass essential oil met the EAO Standard.


2019 ◽  
Vol 41 (3) ◽  
Author(s):  
Isabela Leticia Pessenti ◽  
Ricardo Antonio Ayub ◽  
Renato Vasconcelos Botelho

Abstract High rainfall and low temperatures can cause grapes not to reach adequate maturation indexes. The aim of this work was to evaluate the effect of leaf removal, hormonal regulator and vegetable extracts on the quality of grape and wine. An experiment was conducted in a vineyard of Malbec cv.in southern Brazil by two consecutive seasons. Treatments were: 1) control, 2) manual defoliation in early maturation; 3) defoliation 15 days after the first defoliation; 4) S-ABA200 mg L-1; 5) S-ABA400 mg L-1; 6) S-ABA600 mg L-1. 7) vegetal Stachytarpheta cayenensis extract (100 g L-1) and 8) Cymbopogon citratus 100 g L-1. Diameter and length of canes, soluble solids, titratable acidity, anthocyanins and polyphenols in berry and wine, photosynthetically active radiation (PAR), chlorophyll index, defoliation percentage and leaf chlorosis and color index of berry skin were evaluated. Defoliation and S-ABA increased PAR. S-ABA provided leaf chlorosis and lowered the chlorophyll content, causing senescence. Defoliation and S-ABA increased the levels of total polyphenols, anthocyanins both in berry skin and wine of grapes Malbec cv. Vegetal extracts applied did not influence physical and chemical analyses, neither in anthocyanins and total polyphenols.


2020 ◽  
Vol 14 (3) ◽  
pp. 1817-1823
Author(s):  
Cleusa Fernandes Ramos ◽  
Andreia Assuncao Soares ◽  
Isabela Carvalho dos Santos ◽  
Felipe Andre Pereira Ramos ◽  
Odair Alberton ◽  
...  

The verification of microorganisms that indicate contamination of medicinal plants cultivated in vegetable gardens is fundamental to contribute and improve the conditions and management of the garden, providing safer and healthier food for the consumer population. The study aims to evaluate the bacteriological quality of Cymbopogon citratus, Aloysia citriodora, Plectranthus barbalus, Aloe vera (L.) Burm. F., Sedum dendroideum, and Peumus boldus cultivated in community gardens. Six samples were randomly collected from each plant and sent to the Laboratory of Veterinary Preventive Medicine and Public Health at Universidade Paranaense-UNIPAR, for bacteriological analysis (aerobic mesophilic microorganisms, total coliforms and coliforms at 45ºC. The cold extract (room temperature) of the medicinal plants evaluated, the Plectranthus barbalus had the highest mean for aerobic mesophiles (1.26 CFU/g x 106) and the Cymbopogon citratus second highest mean for aerobic mesophiles (9.80 CFU/g x 105). In the coliform count at 45°C, the highest mean was found in the Aloysia citriodora (2.90 CFU/g x 103) and it presented the second lowest mean for coliforms at 45°C (0.63 CFU/g x 103) and was zero for total coliforms. Regarding the hot extract (95°C-100°C) of the medicinal plants evaluated, a significantly higher aerobic mesophiles count was found for Aloysia citriodora when compared with Aloe vera (L.) Burm. F., Sedum dendroideum and Peumus boldus, not differing statistically from Cymbopogon citratus and Plectranthus barbalus. It was found that medicinal plants are contaminated but, since they are indicated as teas (infusion), they are safe for their consumers because the risk of bacteriological contamination can be considerably eliminated or reduced due to the boiling process.


Author(s):  
Septiani Budi Ariska ◽  
Deny Utomo

Lemongrass is still limited in use, namely more often for cooking ingredients. Lemongrass contains bioactive compounds that are beneficial to the body. This study aims to determine the quality of instant lemongrass powder drink with foam mat drying method. The method used in the study of instant lemongrass powder is the experimental design used was a factorial randomized block design (RAK) consisting of 2 factors, namely the concentration of maltodextrin (15%, 20%, and 30%) and the concentration of Tween80 (0.3% and 0 , 4%) so we get 6 treatment combinations. Each treatment was carried out 5 repetitions so that 30 trials were obtained. The tests included physicochemical (antioxidant, water content test, total dissolved solids, color test) and organoleptic tests (color, aroma, and taste). Data analysis was carried out using ANOVA. If significantly different, then proceed by using the Least Significant Difference test (BNT), organoleptic test using Friedman and to find the best treatment. The best results were found in the treatment of maltodextrin percentage 15% and tween 0.3% details of the results as follows: characteristics as follows color 3.04 (neutral / ordinary), aroma 3.6 (neutral / ordinary) and taste 4.12 (neutral / normal).


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