Preservative Efficacy of Selected Essential Oils on Strawberry

 
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Journal of Advances in Nanotechnology and its Applications
                                                                              Volume 3 Issue 1

   Preservative Efficacy of Selected Essential Oils on Strawberry
                 Deep R. Darji*1, Palak Sapra2, Archana U. Mankad3
Department of Botany, Bioinformatics and Climate Change Impacts Management, School of
                Science, Gujarat University, Ahmedabad, Gujarat, India.

                                   *Corresponding Author
                               E-mail Id:-darjideep5@gmail.com

                                         ABSTRACT
Preservative efficacy of selected natural essential oils was studied on strawberry. Essential
oils employed as phytochemicals researches and practices. Essential oils using in many fields
like pharmaceuticals, pharmacognosy fields and medicinal fields. Cinnamon oil, clove oil and
eucalyptus oil are used in many fields as medicinal properties. Essential oils has also
preservative efficacy. Some essential oils are used as preserve some historical things, plants
parts, animal parts and organs parts. Preservative effects mainly depend on essential oils
chemical constituents. This research provides on preservative efficacy of selected essential oils
on strawberry.

Keywords:-Chemical preservative, natural selected essential oils

INTRODUCTION                                          Cloves (Syzygium aromaticum) are
According to lifetime strawberry have short           aromatic flowers buds from an evergreen
life shelf. Because the high of susceptibility        tree belonging to the myrtaceae plant
to mycosis (fungal infection) and its agent           family [5,6]. They’re considered medicinal
[1]. The employment of artificial antifungal          plants in additional spices in china and
chemical compounds has been a priority for            eastern countries again bacterial and fungal
increasing the period of time of this fruits          diseases [7]. This 8-12 meter plant grows in
[1]. In step with distribution of world,              tropical climates such as Indonesia, India,
strawberry could be a widely grown hybrid             the West Indies, Brazil, Sri Lanka,
species of the fragaria. For this reason, it’s        Tanzania, and Madagascar [8]. Clove buds
necessary to use safe methods to regulate             contain 15-20% violet essential oils, it’s
decomposition and maintain the standard of            mainly having dominated chemical
strawberry fruit during storage [1].                  component eugenol (70-80%) [9-11].

The bark and leaves of varied cinnamon                Eucalyptus, it’s an oversized genus of over
species is a very important spice is                  660 species of shrub and trees of the
employed everywhere the planet [2].                   myrtaceae family [12]. Eucalyptus plant
Cinnamon aromatic plant isn’t only used               parts are having bark, leaves, flower, fruits
for cooking but they need used as medicinal           during which they’re use in several bio-
properties and it also utilized in traditional        activities. Consistent with worldwide, fever
medicine [2]. The genus of cinnamon has               tree is that the principle of source of
three main spices used as bark and powder             eucalyptus volatile oil. Fever tree essential
[3], it will be found on the market [4]               oils also known as volatile aromatic oil
Cinnamon has high medicinal potential and             [13]. For this reason, essential oils are
big selection of possible positive effect for         extracted from plants for clinically
flesh and source [3].                                 purposes have become an important topics
                                                      in research and industrial application likely

HBRP Publication Page 1-6 2021. All Rights Reserved                                        Page 1
Journal of Advances in Nanotechnology and its Applications
                                                                                Volume 3 Issue 1

their different biological activities of oils,            Strawberries were collected from retail fruit
which exercise antimicrobial [14], anti-                  shop, Ahmedabad.
oxidant [15] and anti-inflammatory [16,17].
                                                          Growth of Fungal Strain
The aim of this research was to test in in-               Strawberries were collected from retail fruit
vitro condition, preservative efficacy of                 shop; it should be fresh. Strawberries were
selected natural essential oil on strawberry              put in four different sterilized small
for preservative purposes.                                containers. Strawberry samples should be
                                                          kept on top thing is condition. Effect of
MATERIAL AND METHOD                                       environment factor, humid and moist
Collection of Essential Oils                              affected in two to three days.
Essential oils (cinnamon oil, clove oil and               Total four specimen control specimens
eucalyptus oil) were collected from retail                (X0), no any kind of treatment on this
oil shop, Ahmedabad.                                      control specimen. For preservative
Collection of Strawberry                                  purposes, strawberries were put deep in all
                                                          three oils.

                     Number        of   Specimens
                     specimens
                     X0                 Control strawberry
                     X1                 Strawberry deep in cinnamon oil
                     X2                 Strawberry deep in clove oil
                     X3                 Strawberry deep in eucalyptus oil

                X0                      X1                      X2                  X3

 Specimens

In Vitro Assay to Check Preservative                      treatment of oil and deep in oils. Observed
Activity                                                  fungus identified as Rhizopus stolonifer.
All the containers which were added for
performing the experiment were sterilized                 RESULT AND DISCUSSION
by using ethanol and sterilization. All four              The result showed significant preservative
specimens were disinfected by surface                     efficacy of selected essential oils on
sterilization. Strawberries were incubated                strawberries. It inhibits bacterial and fungal
inside the sterile containers. Observations               infection.
were done under room environment.
                                                          Strawberry
These methods are repeated for 4 month. At                According to research study on three
the tip of incubation period time, antifungal             different essential oils, cinnamon oil, clove
activities are observed. All four specimens               oil and eucalyptus oils have beneficial
X0, X1, X2, and X3 under stable light and                 preservative properties. It inhibited
dark in condition. The infective stage was                contamination like bacterial and fungal
accelerated in two to three days on                       infections. According to selected essential
specimen X0. Because it should be in pack                 oils, cinnamon, clove and eucalypts oils
in condition and don’t have any kind of                   have strong preservative effects. (Table-1)

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Journal of Advances in Nanotechnology and its Applications
                                                                                        Volume 3 Issue 1

                                Table 1:-Inhibitory effects of essential oils.
                           Specimens               Mycelia           Inhibition
                                                   growth
                           X0                      +                 Io
                           X1                      *                 I
                           X2                      *                 I
                           X3                      *                 I
(I-Inhibit, Io- Infected), [+] = present, [*] =absent

According to morphological evidences, all                        identified as Rhizopus stolonifer. After
specimens are stable on control day. X0                          week it totally spoiled. X1, X2 and X3
specimen loses their ability and activity                        started changes after 15 days size and
after two to three days. On this specimen                        colour changes re seen but it stable and
fungal infection showed on third day. Fungi                      preserve up to 4 months. (Table-2)

                                     Table 2:-Morphological evidences
    Days            X0                            X1                      X2                     X3
                    Io          S         C       Io    S        C        Io      S     C        Io   S   C
    Control day     -           -         -       -     -        -        -       -     -        -    -   -
    1-5 days        +           +         +       -     -        -        -       -     -        -    -   -
    5-15 days       +           +         +       -     -        -        -       -     -        -    -   -
    15-30 days      +           +         +       -     -        +        -       -     -        -    -   -
    2 month         +           +         +       -     +        +        -       +     +        -    +   +
    3 month         +           +         +       -     +        +        -       +     +        -    +   +
    4 month         +           +         +       -     +        +        -       +     +        -    +   +
[+] = present, [-] = absent, [Io] = infected, [S] = size changes, [C] = colour changes.

According to microscopic evidences, X0                           X3 specimens haven’t any kind of
specimen has fungal infection and their                          contamination.   (Table-3).   Identified
development. Sporangium development                              evidences and observation are shown in
and mycelia growth are seen. X1, X2 and                          Table 4 and 5.

                                         Table 3:-Microscopic evidences
                  Months            Specimens               Fungal growth (spore and sporangium
                                                            development)
                  1-4 months        X0                      +
                                    X1                      *
                                    X2                      *
                                    X3                      *
[+] = present, [*] = absent

                                          Table 4:-Identified evidences

                                                         a. Fungal             growth       on
                                                         strawberry

                                                         b. Rhizopus stolonifer fungi

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Journal of Advances in Nanotechnology and its Applications
                                                                                    Volume 3 Issue 1

                                           Table 5:-Observation
      Months              X0                  X1              X2                     X3
      Control

      1-4 months          *

[*] = totally infected.

Chart-1: %of preservative efficacy of essential oils.

                                     preservative efficacy of
                                          essential oils.

                                                                               S0

                                                                               S-1

                                                                               S-2

                                                                               S-3

[S0] = X0, [S-1] = X1, [S-2] = X2, [S-3] =X3

As per study X0 specimen haven’t                          All three essential oils have strong and
preservative effects in pack condition. It                beneficial preservative efficacy (Table-6).
less in amount inhibited contamination.                   Preservative efficacy ratio expected;
Level of barrier to infection showed                      cinnamon oil (25%): clove oil (25%):
medium in between in X1 and X2 and                        eucalyptus oil (50%)
strongly highest in X3 as shown in Chart 1.

                                               Table 6:-Result
             Strawberry                   X0            X1             X2            X3
             Level of barrier        to   Very less     Medium    in   Medium in     Strongly
             infection                                  between        between       highest
             Preservative efficacy        No            Yes            Yes           Yes

CONCLUSION                                                showed by eucalyptus oil and medium in
In line with preservation, the result of this             between preservative efficacy showed by
study showed that essential oils were seen                cinnamon and clove oil. Some essential oils
to be the most preservative oils were                     are used as preserve some historical things,
cinnamon, clove and eucalyptus oils.                      plants parts, animal parts and organs parts.
Strongly highest preservative efficacy                    Preservative effects mainly depend on

HBRP Publication Page 1-6 2021. All Rights Reserved                                             Page 4
Journal of Advances in Nanotechnology and its Applications
                                                                              Volume 3 Issue 1

essential oils chemical constituents. The                 A. (2020). The effects of clove seed
natural essential oils have very strong                   (Syzygium        aromaticum)       dietary
bioactivities but they also have fine                     administration          on         carcass
preservatives. According to study best                    characteristics, meat quality, and
preservative oils are cinnamon, clove and                 sensory      attributes     of     broiler
eucalyptus essential oils. “Preservative                  chickens. Poultry Science.
strawberries are not able to eat but their            7. Wankhede, T. B. (2015). Evaluation of
size, structure and their seeds are                       antioxidant and antimicrobial activity
maintained by essential oils. Strawberries                of the Indian clove Syzygium
have colour changes due to strong activity                aromaticum L. Merr. and Perr. Int Res
of essential oils. It employed as a specimen              J Sci Eng, 3, 166-72.
preservative       for    research     study,         8. Bhowmik, D., Kumar, K. S., Yadav,
morphological study and literature study.                 A., Srivastava, S., Paswan, S., & Dutta,
It’s good specimen preservatives.” And it                 A. S. (2012). Recent trends in Indian
survives up to 4 months no any kind of                    traditional        herbs        Syzygium
contamination and infection found.                        aromaticum         and      its     health
                                                          benefits. Journal of Pharmacognosy
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